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Finding the Fourth Proportional to 15,057.65, 20,773.01 and 9,086.03

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Solution

The fourth proportional to 15,057.65, 20,773.01 and 9,086.03 is: 12,534.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,057.65 : 20,773.01 = 9,086.03 : x
  2. Step 2: Convert to fraction form
    15,057.65/20,773.01 = 9,086.03/x
  3. Step 3: Cross multiply
    15,057.65x = 20,773.01 × 9,086.03
  4. Step 4: Simplify right side
    15,057.65x = 188,744,042.76
  5. Step 5: Solve for x
    x = 188,744,042.76/15,057.65
  6. Step 6: Final answer
    x = 12,534.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.