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Finding the Fourth Proportional to 70,761.06, 97,650.41 and 38,931.93

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Solution

The fourth proportional to 70,761.06, 97,650.41 and 38,931.93 is: 53,726.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,761.06 : 97,650.41 = 38,931.93 : x
  2. Step 2: Convert to fraction form
    70,761.06/97,650.41 = 38,931.93/x
  3. Step 3: Cross multiply
    70,761.06x = 97,650.41 × 38,931.93
  4. Step 4: Simplify right side
    70,761.06x = 3,801,718,731.93
  5. Step 5: Solve for x
    x = 3,801,718,731.93/70,761.06
  6. Step 6: Final answer
    x = 53,726.14

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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.