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Finding the Fourth Proportional to 9,959.48, 13,744.97 and 5,712.03

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Solution

The fourth proportional to 9,959.48, 13,744.97 and 5,712.03 is: 7,883.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,959.48 : 13,744.97 = 5,712.03 : x
  2. Step 2: Convert to fraction form
    9,959.48/13,744.97 = 5,712.03/x
  3. Step 3: Cross multiply
    9,959.48x = 13,744.97 × 5,712.03
  4. Step 4: Simplify right side
    9,959.48x = 78,511,652.43
  5. Step 5: Solve for x
    x = 78,511,652.43/9,959.48
  6. Step 6: Final answer
    x = 7,883.11

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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.