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Finding the Fourth Proportional to 8,610.90, 11,884.59 and 5,073.90

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Solution

The fourth proportional to 8,610.90, 11,884.59 and 5,073.90 is: 7,002.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,610.90 : 11,884.59 = 5,073.90 : x
  2. Step 2: Convert to fraction form
    8,610.90/11,884.59 = 5,073.90/x
  3. Step 3: Cross multiply
    8,610.90x = 11,884.59 × 5,073.90
  4. Step 4: Simplify right side
    8,610.90x = 60,301,221.20
  5. Step 5: Solve for x
    x = 60,301,221.20/8,610.90
  6. Step 6: Final answer
    x = 7,002.89

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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.