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Finding the Fourth Proportional to 16,248.38, 24,369.48 and 7,920.02

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Solution

The fourth proportional to 16,248.38, 24,369.48 and 7,920.02 is: 11,878.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,248.38 : 24,369.48 = 7,920.02 : x
  2. Step 2: Convert to fraction form
    16,248.38/24,369.48 = 7,920.02/x
  3. Step 3: Cross multiply
    16,248.38x = 24,369.48 × 7,920.02
  4. Step 4: Simplify right side
    16,248.38x = 193,006,647.14
  5. Step 5: Solve for x
    x = 193,006,647.14/16,248.38
  6. Step 6: Final answer
    x = 11,878.52

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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.