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Finding the Fourth Proportional to 18,732.71, 27,962.41 and 16,368.06

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Solution

The fourth proportional to 18,732.71, 27,962.41 and 16,368.06 is: 24,432.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,732.71 : 27,962.41 = 16,368.06 : x
  2. Step 2: Convert to fraction form
    18,732.71/27,962.41 = 16,368.06/x
  3. Step 3: Cross multiply
    18,732.71x = 27,962.41 × 16,368.06
  4. Step 4: Simplify right side
    18,732.71x = 457,690,404.62
  5. Step 5: Solve for x
    x = 457,690,404.62/18,732.71
  6. Step 6: Final answer
    x = 24,432.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.