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Finding the Fourth Proportional to 18,471.97, 25,491.48 and 10,514.71

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Solution

The fourth proportional to 18,471.97, 25,491.48 and 10,514.71 is: 14,510.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,471.97 : 25,491.48 = 10,514.71 : x
  2. Step 2: Convert to fraction form
    18,471.97/25,491.48 = 10,514.71/x
  3. Step 3: Cross multiply
    18,471.97x = 25,491.48 × 10,514.71
  4. Step 4: Simplify right side
    18,471.97x = 268,035,392.21
  5. Step 5: Solve for x
    x = 268,035,392.21/18,471.97
  6. Step 6: Final answer
    x = 14,510.38

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Double scale
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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.