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Finding the Fourth Proportional to 18,654.19, 25,734.68 and 10,694.59

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Solution

The fourth proportional to 18,654.19, 25,734.68 and 10,694.59 is: 14,753.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,654.19 : 25,734.68 = 10,694.59 : x
  2. Step 2: Convert to fraction form
    18,654.19/25,734.68 = 10,694.59/x
  3. Step 3: Cross multiply
    18,654.19x = 25,734.68 × 10,694.59
  4. Step 4: Simplify right side
    18,654.19x = 275,221,851.38
  5. Step 5: Solve for x
    x = 275,221,851.38/18,654.19
  6. Step 6: Final answer
    x = 14,753.89

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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.