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Finding the Fourth Proportional to 52,959.99, 79,439.92 and 13,517.10

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Solution

The fourth proportional to 52,959.99, 79,439.92 and 13,517.10 is: 20,275.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,959.99 : 79,439.92 = 13,517.10 : x
  2. Step 2: Convert to fraction form
    52,959.99/79,439.92 = 13,517.10/x
  3. Step 3: Cross multiply
    52,959.99x = 79,439.92 × 13,517.10
  4. Step 4: Simplify right side
    52,959.99x = 1,073,797,342.63
  5. Step 5: Solve for x
    x = 1,073,797,342.63/52,959.99
  6. Step 6: Final answer
    x = 20,275.63

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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.