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Finding the Fourth Proportional to 18,071.88, 24,939.56 and 10,901.76

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Solution

The fourth proportional to 18,071.88, 24,939.56 and 10,901.76 is: 15,044.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,071.88 : 24,939.56 = 10,901.76 : x
  2. Step 2: Convert to fraction form
    18,071.88/24,939.56 = 10,901.76/x
  3. Step 3: Cross multiply
    18,071.88x = 24,939.56 × 10,901.76
  4. Step 4: Simplify right side
    18,071.88x = 271,885,097.63
  5. Step 5: Solve for x
    x = 271,885,097.63/18,071.88
  6. Step 6: Final answer
    x = 15,044.65

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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.