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Finding the Fourth Proportional to 15,023.52, 20,733.76 and 8,737.92

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Solution

The fourth proportional to 15,023.52, 20,733.76 and 8,737.92 is: 12,059.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,023.52 : 20,733.76 = 8,737.92 : x
  2. Step 2: Convert to fraction form
    15,023.52/20,733.76 = 8,737.92/x
  3. Step 3: Cross multiply
    15,023.52x = 20,733.76 × 8,737.92
  4. Step 4: Simplify right side
    15,023.52x = 181,169,936.18
  5. Step 5: Solve for x
    x = 181,169,936.18/15,023.52
  6. Step 6: Final answer
    x = 12,059.09

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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.