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Finding the Fourth Proportional to 18,754.92, 28,077.71 and 16,248.38

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Solution

The fourth proportional to 18,754.92, 28,077.71 and 16,248.38 is: 24,325.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,754.92 : 28,077.71 = 16,248.38 : x
  2. Step 2: Convert to fraction form
    18,754.92/28,077.71 = 16,248.38/x
  3. Step 3: Cross multiply
    18,754.92x = 28,077.71 × 16,248.38
  4. Step 4: Simplify right side
    18,754.92x = 456,217,079.98
  5. Step 5: Solve for x
    x = 456,217,079.98/18,754.92
  6. Step 6: Final answer
    x = 24,325.19

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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.