Home / 9,982.12-13,775.36-5,505.76

Finding the Fourth Proportional to 9,982.12, 13,775.36 and 5,505.76

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Solution

The fourth proportional to 9,982.12, 13,775.36 and 5,505.76 is: 7,597.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,982.12 : 13,775.36 = 5,505.76 : x
  2. Step 2: Convert to fraction form
    9,982.12/13,775.36 = 5,505.76/x
  3. Step 3: Cross multiply
    9,982.12x = 13,775.36 × 5,505.76
  4. Step 4: Simplify right side
    9,982.12x = 75,843,826.07
  5. Step 5: Solve for x
    x = 75,843,826.07/9,982.12
  6. Step 6: Final answer
    x = 7,597.97

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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.