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Finding the Fourth Proportional to 17,187.87, 23,718.03 and 9,531.06

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Solution

The fourth proportional to 17,187.87, 23,718.03 and 9,531.06 is: 13,152.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,187.87 : 23,718.03 = 9,531.06 : x
  2. Step 2: Convert to fraction form
    17,187.87/23,718.03 = 9,531.06/x
  3. Step 3: Cross multiply
    17,187.87x = 23,718.03 × 9,531.06
  4. Step 4: Simplify right side
    17,187.87x = 226,057,967.01
  5. Step 5: Solve for x
    x = 226,057,967.01/17,187.87
  6. Step 6: Final answer
    x = 13,152.18

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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.