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Finding the Fourth Proportional to 18,737.28, 25,856.28 and 16,482.24

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Solution

The fourth proportional to 18,737.28, 25,856.28 and 16,482.24 is: 22,744.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,737.28 : 25,856.28 = 16,482.24 : x
  2. Step 2: Convert to fraction form
    18,737.28/25,856.28 = 16,482.24/x
  3. Step 3: Cross multiply
    18,737.28x = 25,856.28 × 16,482.24
  4. Step 4: Simplify right side
    18,737.28x = 426,169,412.47
  5. Step 5: Solve for x
    x = 426,169,412.47/18,737.28
  6. Step 6: Final answer
    x = 22,744.47

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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.