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Finding the Fourth Proportional to 15,168.30, 22,801.05 and 10,815.90

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Solution

The fourth proportional to 15,168.30, 22,801.05 and 10,815.90 is: 16,258.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,168.30 : 22,801.05 = 10,815.90 : x
  2. Step 2: Convert to fraction form
    15,168.30/22,801.05 = 10,815.90/x
  3. Step 3: Cross multiply
    15,168.30x = 22,801.05 × 10,815.90
  4. Step 4: Simplify right side
    15,168.30x = 246,613,876.70
  5. Step 5: Solve for x
    x = 246,613,876.70/15,168.30
  6. Step 6: Final answer
    x = 16,258.50

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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.