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Finding the Fourth Proportional to 8,891.10, 13,333.56 and 4,948.36

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Solution

The fourth proportional to 8,891.10, 13,333.56 and 4,948.36 is: 7,420.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,891.10 : 13,333.56 = 4,948.36 : x
  2. Step 2: Convert to fraction form
    8,891.10/13,333.56 = 4,948.36/x
  3. Step 3: Cross multiply
    8,891.10x = 13,333.56 × 4,948.36
  4. Step 4: Simplify right side
    8,891.10x = 65,979,254.96
  5. Step 5: Solve for x
    x = 65,979,254.96/8,891.10
  6. Step 6: Final answer
    x = 7,420.82

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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.