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Finding the Fourth Proportional to 18,182.76, 25,061.45 and 17,238.71

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Solution

The fourth proportional to 18,182.76, 25,061.45 and 17,238.71 is: 23,760.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,182.76 : 25,061.45 = 17,238.71 : x
  2. Step 2: Convert to fraction form
    18,182.76/25,061.45 = 17,238.71/x
  3. Step 3: Cross multiply
    18,182.76x = 25,061.45 × 17,238.71
  4. Step 4: Simplify right side
    18,182.76x = 432,026,857.23
  5. Step 5: Solve for x
    x = 432,026,857.23/18,182.76
  6. Step 6: Final answer
    x = 23,760.25

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Half scale
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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.