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Finding the Fourth Proportional to 17,312.91, 23,891.82 and 9,860.91

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Solution

The fourth proportional to 17,312.91, 23,891.82 and 9,860.91 is: 13,608.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,312.91 : 23,891.82 = 9,860.91 : x
  2. Step 2: Convert to fraction form
    17,312.91/23,891.82 = 9,860.91/x
  3. Step 3: Cross multiply
    17,312.91x = 23,891.82 × 9,860.91
  4. Step 4: Simplify right side
    17,312.91x = 235,594,960.18
  5. Step 5: Solve for x
    x = 235,594,960.18/17,312.91
  6. Step 6: Final answer
    x = 13,608.05

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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.