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Finding the Fourth Proportional to 17,781.58, 24,510.22 and 13,998.75

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Solution

The fourth proportional to 17,781.58, 24,510.22 and 13,998.75 is: 19,295.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,781.58 : 24,510.22 = 13,998.75 : x
  2. Step 2: Convert to fraction form
    17,781.58/24,510.22 = 13,998.75/x
  3. Step 3: Cross multiply
    17,781.58x = 24,510.22 × 13,998.75
  4. Step 4: Simplify right side
    17,781.58x = 343,112,442.23
  5. Step 5: Solve for x
    x = 343,112,442.23/17,781.58
  6. Step 6: Final answer
    x = 19,295.95

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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.