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Finding the Fourth Proportional to 60,073.02, 90,123.22 and 31,978.27

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Solution

The fourth proportional to 60,073.02, 90,123.22 and 31,978.27 is: 47,974.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,073.02 : 90,123.22 = 31,978.27 : x
  2. Step 2: Convert to fraction form
    60,073.02/90,123.22 = 31,978.27/x
  3. Step 3: Cross multiply
    60,073.02x = 90,123.22 × 31,978.27
  4. Step 4: Simplify right side
    60,073.02x = 2,881,984,896.82
  5. Step 5: Solve for x
    x = 2,881,984,896.82/60,073.02
  6. Step 6: Final answer
    x = 47,974.70

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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.