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Finding the Fourth Proportional to 8,818.98, 13,231.71 and 6,356.58

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Solution

The fourth proportional to 8,818.98, 13,231.71 and 6,356.58 is: 9,537.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,818.98 : 13,231.71 = 6,356.58 : x
  2. Step 2: Convert to fraction form
    8,818.98/13,231.71 = 6,356.58/x
  3. Step 3: Cross multiply
    8,818.98x = 13,231.71 × 6,356.58
  4. Step 4: Simplify right side
    8,818.98x = 84,108,423.15
  5. Step 5: Solve for x
    x = 84,108,423.15/8,818.98
  6. Step 6: Final answer
    x = 9,537.21

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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.