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Finding the Fourth Proportional to 17,376.24, 23,978.88 and 9,418.32

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Solution

The fourth proportional to 17,376.24, 23,978.88 and 9,418.32 is: 12,997.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,376.24 : 23,978.88 = 9,418.32 : x
  2. Step 2: Convert to fraction form
    17,376.24/23,978.88 = 9,418.32/x
  3. Step 3: Cross multiply
    17,376.24x = 23,978.88 × 9,418.32
  4. Step 4: Simplify right side
    17,376.24x = 225,840,765.08
  5. Step 5: Solve for x
    x = 225,840,765.08/17,376.24
  6. Step 6: Final answer
    x = 12,997.10

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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.