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Finding the Fourth Proportional to 57,440.98, 86,073.45 and 38,651.50

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Solution

The fourth proportional to 57,440.98, 86,073.45 and 38,651.50 is: 57,918.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,440.98 : 86,073.45 = 38,651.50 : x
  2. Step 2: Convert to fraction form
    57,440.98/86,073.45 = 38,651.50/x
  3. Step 3: Cross multiply
    57,440.98x = 86,073.45 × 38,651.50
  4. Step 4: Simplify right side
    57,440.98x = 3,326,867,952.68
  5. Step 5: Solve for x
    x = 3,326,867,952.68/57,440.98
  6. Step 6: Final answer
    x = 57,918.02

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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.