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Finding the Fourth Proportional to 19,900.92, 27,463.30 and 10,948.97

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Solution

The fourth proportional to 19,900.92, 27,463.30 and 10,948.97 is: 15,109.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,900.92 : 27,463.30 = 10,948.97 : x
  2. Step 2: Convert to fraction form
    19,900.92/27,463.30 = 10,948.97/x
  3. Step 3: Cross multiply
    19,900.92x = 27,463.30 × 10,948.97
  4. Step 4: Simplify right side
    19,900.92x = 300,694,950.67
  5. Step 5: Solve for x
    x = 300,694,950.67/19,900.92
  6. Step 6: Final answer
    x = 15,109.60

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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.