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Finding the Fourth Proportional to 57,937.70, 86,906.55 and 56,953.55

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Solution

The fourth proportional to 57,937.70, 86,906.55 and 56,953.55 is: 85,430.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,937.70 : 86,906.55 = 56,953.55 : x
  2. Step 2: Convert to fraction form
    57,937.70/86,906.55 = 56,953.55/x
  3. Step 3: Cross multiply
    57,937.70x = 86,906.55 × 56,953.55
  4. Step 4: Simplify right side
    57,937.70x = 4,949,636,540.75
  5. Step 5: Solve for x
    x = 4,949,636,540.75/57,937.70
  6. Step 6: Final answer
    x = 85,430.33

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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.