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Finding the Fourth Proportional to 8,791.64, 13,178.35 and 5,497.17

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Solution

The fourth proportional to 8,791.64, 13,178.35 and 5,497.17 is: 8,240.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,791.64 : 13,178.35 = 5,497.17 : x
  2. Step 2: Convert to fraction form
    8,791.64/13,178.35 = 5,497.17/x
  3. Step 3: Cross multiply
    8,791.64x = 13,178.35 × 5,497.17
  4. Step 4: Simplify right side
    8,791.64x = 72,443,583.58
  5. Step 5: Solve for x
    x = 72,443,583.58/8,791.64
  6. Step 6: Final answer
    x = 8,240.05

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1.5x scale

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.