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Finding the Fourth Proportional to 8,871.63, 13,279.77 and 6,534.28

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Solution

The fourth proportional to 8,871.63, 13,279.77 and 6,534.28 is: 9,781.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,871.63 : 13,279.77 = 6,534.28 : x
  2. Step 2: Convert to fraction form
    8,871.63/13,279.77 = 6,534.28/x
  3. Step 3: Cross multiply
    8,871.63x = 13,279.77 × 6,534.28
  4. Step 4: Simplify right side
    8,871.63x = 86,773,733.14
  5. Step 5: Solve for x
    x = 86,773,733.14/8,871.63
  6. Step 6: Final answer
    x = 9,781.03

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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.