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Finding the Fourth Proportional to 27,874.66, 38,468.19 and 15,937.99

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Solution

The fourth proportional to 27,874.66, 38,468.19 and 15,937.99 is: 21,995.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,874.66 : 38,468.19 = 15,937.99 : x
  2. Step 2: Convert to fraction form
    27,874.66/38,468.19 = 15,937.99/x
  3. Step 3: Cross multiply
    27,874.66x = 38,468.19 × 15,937.99
  4. Step 4: Simplify right side
    27,874.66x = 613,105,531.37
  5. Step 5: Solve for x
    x = 613,105,531.37/27,874.66
  6. Step 6: Final answer
    x = 21,995.09

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Half scale
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Double scale
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Similar ratio
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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.