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Finding the Fourth Proportional to 9,961.04, 13,747.56 and 9,655.04

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Solution

The fourth proportional to 9,961.04, 13,747.56 and 9,655.04 is: 13,325.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,961.04 : 13,747.56 = 9,655.04 : x
  2. Step 2: Convert to fraction form
    9,961.04/13,747.56 = 9,655.04/x
  3. Step 3: Cross multiply
    9,961.04x = 13,747.56 × 9,655.04
  4. Step 4: Simplify right side
    9,961.04x = 132,733,241.70
  5. Step 5: Solve for x
    x = 132,733,241.70/9,961.04
  6. Step 6: Final answer
    x = 13,325.24

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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.