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Finding the Fourth Proportional to 18,146.71, 25,042.24 and 10,188.73

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Solution

The fourth proportional to 18,146.71, 25,042.24 and 10,188.73 is: 14,060.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,146.71 : 25,042.24 = 10,188.73 : x
  2. Step 2: Convert to fraction form
    18,146.71/25,042.24 = 10,188.73/x
  3. Step 3: Cross multiply
    18,146.71x = 25,042.24 × 10,188.73
  4. Step 4: Simplify right side
    18,146.71x = 255,148,621.96
  5. Step 5: Solve for x
    x = 255,148,621.96/18,146.71
  6. Step 6: Final answer
    x = 14,060.32

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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.