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Finding the Fourth Proportional to 21,702.62, 32,520.25 and 15,052.08

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Solution

The fourth proportional to 21,702.62, 32,520.25 and 15,052.08 is: 22,554.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,702.62 : 32,520.25 = 15,052.08 : x
  2. Step 2: Convert to fraction form
    21,702.62/32,520.25 = 15,052.08/x
  3. Step 3: Cross multiply
    21,702.62x = 32,520.25 × 15,052.08
  4. Step 4: Simplify right side
    21,702.62x = 489,497,545.39
  5. Step 5: Solve for x
    x = 489,497,545.39/21,702.62
  6. Step 6: Final answer
    x = 22,554.77

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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.