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Finding the Fourth Proportional to 67,446.86, 93,079.68 and 38,775.80

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Solution

The fourth proportional to 67,446.86, 93,079.68 and 38,775.80 is: 53,512.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,446.86 : 93,079.68 = 38,775.80 : x
  2. Step 2: Convert to fraction form
    67,446.86/93,079.68 = 38,775.80/x
  3. Step 3: Cross multiply
    67,446.86x = 93,079.68 × 38,775.80
  4. Step 4: Simplify right side
    67,446.86x = 3,609,239,230.25
  5. Step 5: Solve for x
    x = 3,609,239,230.25/67,446.86
  6. Step 6: Final answer
    x = 53,512.34

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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.