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Finding the Fourth Proportional to 5,520.52, 8,271.06 and 4,917.88

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Solution

The fourth proportional to 5,520.52, 8,271.06 and 4,917.88 is: 7,368.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,520.52 : 8,271.06 = 4,917.88 : x
  2. Step 2: Convert to fraction form
    5,520.52/8,271.06 = 4,917.88/x
  3. Step 3: Cross multiply
    5,520.52x = 8,271.06 × 4,917.88
  4. Step 4: Simplify right side
    5,520.52x = 40,676,080.55
  5. Step 5: Solve for x
    x = 40,676,080.55/5,520.52
  6. Step 6: Final answer
    x = 7,368.16

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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.