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Finding the Fourth Proportional to 70,037.01, 105,061.92 and 27,906.87

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Solution

The fourth proportional to 70,037.01, 105,061.92 and 27,906.87 is: 41,862.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,037.01 : 105,061.92 = 27,906.87 : x
  2. Step 2: Convert to fraction form
    70,037.01/105,061.92 = 27,906.87/x
  3. Step 3: Cross multiply
    70,037.01x = 105,061.92 × 27,906.87
  4. Step 4: Simplify right side
    70,037.01x = 2,931,949,343.39
  5. Step 5: Solve for x
    x = 2,931,949,343.39/70,037.01
  6. Step 6: Final answer
    x = 41,862.86

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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.