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Finding the Fourth Proportional to 17,310.11, 25,965.20 and 9,909.47

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Solution

The fourth proportional to 17,310.11, 25,965.20 and 9,909.47 is: 14,864.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,310.11 : 25,965.20 = 9,909.47 : x
  2. Step 2: Convert to fraction form
    17,310.11/25,965.20 = 9,909.47/x
  3. Step 3: Cross multiply
    17,310.11x = 25,965.20 × 9,909.47
  4. Step 4: Simplify right side
    17,310.11x = 257,301,460.13
  5. Step 5: Solve for x
    x = 257,301,460.13/17,310.11
  6. Step 6: Final answer
    x = 14,864.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.