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Finding the Fourth Proportional to 15,216.52, 20,998.76 and 8,592.52

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Solution

The fourth proportional to 15,216.52, 20,998.76 and 8,592.52 is: 11,857.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,216.52 : 20,998.76 = 8,592.52 : x
  2. Step 2: Convert to fraction form
    15,216.52/20,998.76 = 8,592.52/x
  3. Step 3: Cross multiply
    15,216.52x = 20,998.76 × 8,592.52
  4. Step 4: Simplify right side
    15,216.52x = 180,432,265.28
  5. Step 5: Solve for x
    x = 180,432,265.28/15,216.52
  6. Step 6: Final answer
    x = 11,857.66

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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.