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Finding the Fourth Proportional to 52,956.57, 79,445.79 and 15,517.86

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Solution

The fourth proportional to 52,956.57, 79,445.79 and 15,517.86 is: 23,279.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,956.57 : 79,445.79 = 15,517.86 : x
  2. Step 2: Convert to fraction form
    52,956.57/79,445.79 = 15,517.86/x
  3. Step 3: Cross multiply
    52,956.57x = 79,445.79 × 15,517.86
  4. Step 4: Simplify right side
    52,956.57x = 1,232,828,646.81
  5. Step 5: Solve for x
    x = 1,232,828,646.81/52,956.57
  6. Step 6: Final answer
    x = 23,279.99

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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.