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Finding the Fourth Proportional to 11,862.10, 17,793.15 and 9,702.10

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Solution

The fourth proportional to 11,862.10, 17,793.15 and 9,702.10 is: 14,553.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,862.10 : 17,793.15 = 9,702.10 : x
  2. Step 2: Convert to fraction form
    11,862.10/17,793.15 = 9,702.10/x
  3. Step 3: Cross multiply
    11,862.10x = 17,793.15 × 9,702.10
  4. Step 4: Simplify right side
    11,862.10x = 172,630,920.62
  5. Step 5: Solve for x
    x = 172,630,920.62/11,862.10
  6. Step 6: Final answer
    x = 14,553.15

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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.