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Finding the Fourth Proportional to 13,892.65, 20,830.08 and 6,000.31

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Solution

The fourth proportional to 13,892.65, 20,830.08 and 6,000.31 is: 8,996.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,892.65 : 20,830.08 = 6,000.31 : x
  2. Step 2: Convert to fraction form
    13,892.65/20,830.08 = 6,000.31/x
  3. Step 3: Cross multiply
    13,892.65x = 20,830.08 × 6,000.31
  4. Step 4: Simplify right side
    13,892.65x = 124,986,833.17
  5. Step 5: Solve for x
    x = 124,986,833.17/13,892.65
  6. Step 6: Final answer
    x = 8,996.62

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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.