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Finding the Fourth Proportional to 17,618.88, 24,313.92 and 9,661.16

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Solution

The fourth proportional to 17,618.88, 24,313.92 and 9,661.16 is: 13,332.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,618.88 : 24,313.92 = 9,661.16 : x
  2. Step 2: Convert to fraction form
    17,618.88/24,313.92 = 9,661.16/x
  3. Step 3: Cross multiply
    17,618.88x = 24,313.92 × 9,661.16
  4. Step 4: Simplify right side
    17,618.88x = 234,900,671.35
  5. Step 5: Solve for x
    x = 234,900,671.35/17,618.88
  6. Step 6: Final answer
    x = 13,332.33

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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.