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Finding the Fourth Proportional to 77,597.87, 107,094.92 and 47,376.68

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Solution

The fourth proportional to 77,597.87, 107,094.92 and 47,376.68 is: 65,385.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,597.87 : 107,094.92 = 47,376.68 : x
  2. Step 2: Convert to fraction form
    77,597.87/107,094.92 = 47,376.68/x
  3. Step 3: Cross multiply
    77,597.87x = 107,094.92 × 47,376.68
  4. Step 4: Simplify right side
    77,597.87x = 5,073,800,982.11
  5. Step 5: Solve for x
    x = 5,073,800,982.11/77,597.87
  6. Step 6: Final answer
    x = 65,385.83

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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.