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Finding the Fourth Proportional to 73,164.76, 109,778.85 and 25,813.74

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Solution

The fourth proportional to 73,164.76, 109,778.85 and 25,813.74 is: 38,731.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,164.76 : 109,778.85 = 25,813.74 : x
  2. Step 2: Convert to fraction form
    73,164.76/109,778.85 = 25,813.74/x
  3. Step 3: Cross multiply
    73,164.76x = 109,778.85 × 25,813.74
  4. Step 4: Simplify right side
    73,164.76x = 2,833,802,691.40
  5. Step 5: Solve for x
    x = 2,833,802,691.40/73,164.76
  6. Step 6: Final answer
    x = 38,731.80

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1.5x scale

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.