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Finding the Fourth Proportional to 17,187.90, 23,717.52 and 10,113.90

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Solution

The fourth proportional to 17,187.90, 23,717.52 and 10,113.90 is: 13,956.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,187.90 : 23,717.52 = 10,113.90 : x
  2. Step 2: Convert to fraction form
    17,187.90/23,717.52 = 10,113.90/x
  3. Step 3: Cross multiply
    17,187.90x = 23,717.52 × 10,113.90
  4. Step 4: Simplify right side
    17,187.90x = 239,876,625.53
  5. Step 5: Solve for x
    x = 239,876,625.53/17,187.90
  6. Step 6: Final answer
    x = 13,956.13

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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.