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Finding the Fourth Proportional to 77,286.60, 115,929.90 and 24,697.80

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Solution

The fourth proportional to 77,286.60, 115,929.90 and 24,697.80 is: 37,046.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,286.60 : 115,929.90 = 24,697.80 : x
  2. Step 2: Convert to fraction form
    77,286.60/115,929.90 = 24,697.80/x
  3. Step 3: Cross multiply
    77,286.60x = 115,929.90 × 24,697.80
  4. Step 4: Simplify right side
    77,286.60x = 2,863,213,484.22
  5. Step 5: Solve for x
    x = 2,863,213,484.22/77,286.60
  6. Step 6: Final answer
    x = 37,046.70

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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.