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Finding the Fourth Proportional to 67,929.68, 101,900 and 25,829.92

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Solution

The fourth proportional to 67,929.68, 101,900 and 25,829.92 is: 38,746.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,929.68 : 101,900 = 25,829.92 : x
  2. Step 2: Convert to fraction form
    67,929.68/101,900 = 25,829.92/x
  3. Step 3: Cross multiply
    67,929.68x = 101,900 × 25,829.92
  4. Step 4: Simplify right side
    67,929.68x = 2,632,068,848
  5. Step 5: Solve for x
    x = 2,632,068,848/67,929.68
  6. Step 6: Final answer
    x = 38,746.96

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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.