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Finding the Fourth Proportional to 73,472.32, 101,389.44 and 39,938.08

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Solution

The fourth proportional to 73,472.32, 101,389.44 and 39,938.08 is: 55,113.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,472.32 : 101,389.44 = 39,938.08 : x
  2. Step 2: Convert to fraction form
    73,472.32/101,389.44 = 39,938.08/x
  3. Step 3: Cross multiply
    73,472.32x = 101,389.44 × 39,938.08
  4. Step 4: Simplify right side
    73,472.32x = 4,049,299,565.88
  5. Step 5: Solve for x
    x = 4,049,299,565.88/73,472.32
  6. Step 6: Final answer
    x = 55,113.27

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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.