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Finding the Fourth Proportional to 8,562.74, 12,844.06 and 4,403.91

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Solution

The fourth proportional to 8,562.74, 12,844.06 and 4,403.91 is: 6,605.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,562.74 : 12,844.06 = 4,403.91 : x
  2. Step 2: Convert to fraction form
    8,562.74/12,844.06 = 4,403.91/x
  3. Step 3: Cross multiply
    8,562.74x = 12,844.06 × 4,403.91
  4. Step 4: Simplify right side
    8,562.74x = 56,564,073.26
  5. Step 5: Solve for x
    x = 56,564,073.26/8,562.74
  6. Step 6: Final answer
    x = 6,605.84

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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.