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Finding the Fourth Proportional to 17,332.71, 23,919.15 and 9,780.65

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Solution

The fourth proportional to 17,332.71, 23,919.15 and 9,780.65 is: 13,497.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,332.71 : 23,919.15 = 9,780.65 : x
  2. Step 2: Convert to fraction form
    17,332.71/23,919.15 = 9,780.65/x
  3. Step 3: Cross multiply
    17,332.71x = 23,919.15 × 9,780.65
  4. Step 4: Simplify right side
    17,332.71x = 233,944,665.95
  5. Step 5: Solve for x
    x = 233,944,665.95/17,332.71
  6. Step 6: Final answer
    x = 13,497.29

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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.