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Finding the Fourth Proportional to 11,568.88, 15,965.20 and 6,852.25

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Solution

The fourth proportional to 11,568.88, 15,965.20 and 6,852.25 is: 9,456.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,568.88 : 15,965.20 = 6,852.25 : x
  2. Step 2: Convert to fraction form
    11,568.88/15,965.20 = 6,852.25/x
  3. Step 3: Cross multiply
    11,568.88x = 15,965.20 × 6,852.25
  4. Step 4: Simplify right side
    11,568.88x = 109,397,541.70
  5. Step 5: Solve for x
    x = 109,397,541.70/11,568.88
  6. Step 6: Final answer
    x = 9,456.19

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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.