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Finding the Fourth Proportional to 9,984.97, 13,779.17 and 5,508.76

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Solution

The fourth proportional to 9,984.97, 13,779.17 and 5,508.76 is: 7,602.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,984.97 : 13,779.17 = 5,508.76 : x
  2. Step 2: Convert to fraction form
    9,984.97/13,779.17 = 5,508.76/x
  3. Step 3: Cross multiply
    9,984.97x = 13,779.17 × 5,508.76
  4. Step 4: Simplify right side
    9,984.97x = 75,906,078.54
  5. Step 5: Solve for x
    x = 75,906,078.54/9,984.97
  6. Step 6: Final answer
    x = 7,602.04

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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.