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Finding the Fourth Proportional to 8,860.88, 13,290.99 and 2,197.40

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Solution

The fourth proportional to 8,860.88, 13,290.99 and 2,197.40 is: 3,296.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,860.88 : 13,290.99 = 2,197.40 : x
  2. Step 2: Convert to fraction form
    8,860.88/13,290.99 = 2,197.40/x
  3. Step 3: Cross multiply
    8,860.88x = 13,290.99 × 2,197.40
  4. Step 4: Simplify right side
    8,860.88x = 29,205,554.97
  5. Step 5: Solve for x
    x = 29,205,554.97/8,860.88
  6. Step 6: Final answer
    x = 3,296.01

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.