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Finding the Fourth Proportional to 24,428.84, 36,641.40 and 7,789.40

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Solution

The fourth proportional to 24,428.84, 36,641.40 and 7,789.40 is: 11,683.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    24,428.84 : 36,641.40 = 7,789.40 : x
  2. Step 2: Convert to fraction form
    24,428.84/36,641.40 = 7,789.40/x
  3. Step 3: Cross multiply
    24,428.84x = 36,641.40 × 7,789.40
  4. Step 4: Simplify right side
    24,428.84x = 285,414,521.16
  5. Step 5: Solve for x
    x = 285,414,521.16/24,428.84
  6. Step 6: Final answer
    x = 11,683.51

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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.