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Finding the Fourth Proportional to 17,618.85, 24,313.91 and 9,661.14

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Solution

The fourth proportional to 17,618.85, 24,313.91 and 9,661.14 is: 13,332.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,618.85 : 24,313.91 = 9,661.14 : x
  2. Step 2: Convert to fraction form
    17,618.85/24,313.91 = 9,661.14/x
  3. Step 3: Cross multiply
    17,618.85x = 24,313.91 × 9,661.14
  4. Step 4: Simplify right side
    17,618.85x = 234,900,040.15
  5. Step 5: Solve for x
    x = 234,900,040.15/17,618.85
  6. Step 6: Final answer
    x = 13,332.31

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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.