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Finding the Fourth Proportional to 8,708.80, 13,055.10 and 6,076.30

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Solution

The fourth proportional to 8,708.80, 13,055.10 and 6,076.30 is: 9,108.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,708.80 : 13,055.10 = 6,076.30 : x
  2. Step 2: Convert to fraction form
    8,708.80/13,055.10 = 6,076.30/x
  3. Step 3: Cross multiply
    8,708.80x = 13,055.10 × 6,076.30
  4. Step 4: Simplify right side
    8,708.80x = 79,326,704.13
  5. Step 5: Solve for x
    x = 79,326,704.13/8,708.80
  6. Step 6: Final answer
    x = 9,108.80

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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.