Home / 16,618.17-22,910.11-13,272.25

Finding the Fourth Proportional to 16,618.17, 22,910.11 and 13,272.25

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Solution

The fourth proportional to 16,618.17, 22,910.11 and 13,272.25 is: 18,297.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,618.17 : 22,910.11 = 13,272.25 : x
  2. Step 2: Convert to fraction form
    16,618.17/22,910.11 = 13,272.25/x
  3. Step 3: Cross multiply
    16,618.17x = 22,910.11 × 13,272.25
  4. Step 4: Simplify right side
    16,618.17x = 304,068,641.09
  5. Step 5: Solve for x
    x = 304,068,641.09/16,618.17
  6. Step 6: Final answer
    x = 18,297.36

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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.