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Finding the Fourth Proportional to 10,449.80, 15,767.79 and 10,044.76

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Solution

The fourth proportional to 10,449.80, 15,767.79 and 10,044.76 is: 15,156.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,449.80 : 15,767.79 = 10,044.76 : x
  2. Step 2: Convert to fraction form
    10,449.80/15,767.79 = 10,044.76/x
  3. Step 3: Cross multiply
    10,449.80x = 15,767.79 × 10,044.76
  4. Step 4: Simplify right side
    10,449.80x = 158,383,666.28
  5. Step 5: Solve for x
    x = 158,383,666.28/10,449.80
  6. Step 6: Final answer
    x = 15,156.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.