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Finding the Fourth Proportional to 73,915.80, 101,974.86 and 45,572.28

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Solution

The fourth proportional to 73,915.80, 101,974.86 and 45,572.28 is: 62,871.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,915.80 : 101,974.86 = 45,572.28 : x
  2. Step 2: Convert to fraction form
    73,915.80/101,974.86 = 45,572.28/x
  3. Step 3: Cross multiply
    73,915.80x = 101,974.86 × 45,572.28
  4. Step 4: Simplify right side
    73,915.80x = 4,647,226,872.88
  5. Step 5: Solve for x
    x = 4,647,226,872.88/73,915.80
  6. Step 6: Final answer
    x = 62,871.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.