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Finding the Fourth Proportional to 9,820.44, 13,565.48 and 7,844.85

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Solution

The fourth proportional to 9,820.44, 13,565.48 and 7,844.85 is: 10,836.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,820.44 : 13,565.48 = 7,844.85 : x
  2. Step 2: Convert to fraction form
    9,820.44/13,565.48 = 7,844.85/x
  3. Step 3: Cross multiply
    9,820.44x = 13,565.48 × 7,844.85
  4. Step 4: Simplify right side
    9,820.44x = 106,419,116.55
  5. Step 5: Solve for x
    x = 106,419,116.55/9,820.44
  6. Step 6: Final answer
    x = 10,836.49

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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.