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Finding the Fourth Proportional to 8,985.80, 13,446.30 and 6,069.80

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Solution

The fourth proportional to 8,985.80, 13,446.30 and 6,069.80 is: 9,082.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,985.80 : 13,446.30 = 6,069.80 : x
  2. Step 2: Convert to fraction form
    8,985.80/13,446.30 = 6,069.80/x
  3. Step 3: Cross multiply
    8,985.80x = 13,446.30 × 6,069.80
  4. Step 4: Simplify right side
    8,985.80x = 81,616,351.74
  5. Step 5: Solve for x
    x = 81,616,351.74/8,985.80
  6. Step 6: Final answer
    x = 9,082.81

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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.