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Finding the Fourth Proportional to 48,486.70, 72,691.65 and 26,598.70

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Solution

The fourth proportional to 48,486.70, 72,691.65 and 26,598.70 is: 39,876.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,486.70 : 72,691.65 = 26,598.70 : x
  2. Step 2: Convert to fraction form
    48,486.70/72,691.65 = 26,598.70/x
  3. Step 3: Cross multiply
    48,486.70x = 72,691.65 × 26,598.70
  4. Step 4: Simplify right side
    48,486.70x = 1,933,503,390.86
  5. Step 5: Solve for x
    x = 1,933,503,390.86/48,486.70
  6. Step 6: Final answer
    x = 39,876.98

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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.