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Finding the Fourth Proportional to 8,444.16, 12,666.24 and 5,113.24

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Solution

The fourth proportional to 8,444.16, 12,666.24 and 5,113.24 is: 7,669.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,444.16 : 12,666.24 = 5,113.24 : x
  2. Step 2: Convert to fraction form
    8,444.16/12,666.24 = 5,113.24/x
  3. Step 3: Cross multiply
    8,444.16x = 12,666.24 × 5,113.24
  4. Step 4: Simplify right side
    8,444.16x = 64,765,493.35
  5. Step 5: Solve for x
    x = 64,765,493.35/8,444.16
  6. Step 6: Final answer
    x = 7,669.86

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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.