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Finding the Fourth Proportional to 17,985.26, 24,819.17 and 10,431.11

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Solution

The fourth proportional to 17,985.26, 24,819.17 and 10,431.11 is: 14,394.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,985.26 : 24,819.17 = 10,431.11 : x
  2. Step 2: Convert to fraction form
    17,985.26/24,819.17 = 10,431.11/x
  3. Step 3: Cross multiply
    17,985.26x = 24,819.17 × 10,431.11
  4. Step 4: Simplify right side
    17,985.26x = 258,891,580.50
  5. Step 5: Solve for x
    x = 258,891,580.50/17,985.26
  6. Step 6: Final answer
    x = 14,394.65

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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.