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Finding the Fourth Proportional to 8,427,587.55, 12,641,381.33 and 8,427,587.55

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Solution

The fourth proportional to 8,427,587.55, 12,641,381.33 and 8,427,587.55 is: 12,641,381.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,427,587.55 : 12,641,381.33 = 8,427,587.55 : x
  2. Step 2: Convert to fraction form
    8,427,587.55/12,641,381.33 = 8,427,587.55/x
  3. Step 3: Cross multiply
    8,427,587.55x = 12,641,381.33 × 8,427,587.55
  4. Step 4: Simplify right side
    8,427,587.55x = 106,536,347,869,372.50
  5. Step 5: Solve for x
    x = 106,536,347,869,372.50/8,427,587.55
  6. Step 6: Final answer
    x = 12,641,381.33

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.