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Finding the Fourth Proportional to 22,909.30, 34,353.12 and 8,875.90

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Solution

The fourth proportional to 22,909.30, 34,353.12 and 8,875.90 is: 13,309.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,909.30 : 34,353.12 = 8,875.90 : x
  2. Step 2: Convert to fraction form
    22,909.30/34,353.12 = 8,875.90/x
  3. Step 3: Cross multiply
    22,909.30x = 34,353.12 × 8,875.90
  4. Step 4: Simplify right side
    22,909.30x = 304,914,857.81
  5. Step 5: Solve for x
    x = 304,914,857.81/22,909.30
  6. Step 6: Final answer
    x = 13,309.65

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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.