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Finding the Fourth Proportional to 57,607.70, 86,411.55 and 47,110.10

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Solution

The fourth proportional to 57,607.70, 86,411.55 and 47,110.10 is: 70,665.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,607.70 : 86,411.55 = 47,110.10 : x
  2. Step 2: Convert to fraction form
    57,607.70/86,411.55 = 47,110.10/x
  3. Step 3: Cross multiply
    57,607.70x = 86,411.55 × 47,110.10
  4. Step 4: Simplify right side
    57,607.70x = 4,070,856,761.66
  5. Step 5: Solve for x
    x = 4,070,856,761.66/57,607.70
  6. Step 6: Final answer
    x = 70,665.15

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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.