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Finding the Fourth Proportional to 17,312.96, 25,965.78 and 6,220.28

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Solution

The fourth proportional to 17,312.96, 25,965.78 and 6,220.28 is: 9,329.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,312.96 : 25,965.78 = 6,220.28 : x
  2. Step 2: Convert to fraction form
    17,312.96/25,965.78 = 6,220.28/x
  3. Step 3: Cross multiply
    17,312.96x = 25,965.78 × 6,220.28
  4. Step 4: Simplify right side
    17,312.96x = 161,514,422.02
  5. Step 5: Solve for x
    x = 161,514,422.02/17,312.96
  6. Step 6: Final answer
    x = 9,329.11

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