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Finding the Fourth Proportional to 70,763.76, 97,653.27 and 38,932.68

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Solution

The fourth proportional to 70,763.76, 97,653.27 and 38,932.68 is: 53,726.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,763.76 : 97,653.27 = 38,932.68 : x
  2. Step 2: Convert to fraction form
    70,763.76/97,653.27 = 38,932.68/x
  3. Step 3: Cross multiply
    70,763.76x = 97,653.27 × 38,932.68
  4. Step 4: Simplify right side
    70,763.76x = 3,801,903,511.86
  5. Step 5: Solve for x
    x = 3,801,903,511.86/70,763.76
  6. Step 6: Final answer
    x = 53,726.70

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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.