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Finding the Fourth Proportional to 8,466.58, 12,699.87 and 4,084.48

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Solution

The fourth proportional to 8,466.58, 12,699.87 and 4,084.48 is: 6,126.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,466.58 : 12,699.87 = 4,084.48 : x
  2. Step 2: Convert to fraction form
    8,466.58/12,699.87 = 4,084.48/x
  3. Step 3: Cross multiply
    8,466.58x = 12,699.87 × 4,084.48
  4. Step 4: Simplify right side
    8,466.58x = 51,872,365.02
  5. Step 5: Solve for x
    x = 51,872,365.02/8,466.58
  6. Step 6: Final answer
    x = 6,126.72

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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.