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Finding the Fourth Proportional to 17,188.90, 23,718.90 and 10,114.90

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Solution

The fourth proportional to 17,188.90, 23,718.90 and 10,114.90 is: 13,957.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,188.90 : 23,718.90 = 10,114.90 : x
  2. Step 2: Convert to fraction form
    17,188.90/23,718.90 = 10,114.90/x
  3. Step 3: Cross multiply
    17,188.90x = 23,718.90 × 10,114.90
  4. Step 4: Simplify right side
    17,188.90x = 239,914,301.61
  5. Step 5: Solve for x
    x = 239,914,301.61/17,188.90
  6. Step 6: Final answer
    x = 13,957.51

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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.