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Finding the Fourth Proportional to 8,436.60, 12,644.10 and 4,044.60

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Solution

The fourth proportional to 8,436.60, 12,644.10 and 4,044.60 is: 6,061.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,436.60 : 12,644.10 = 4,044.60 : x
  2. Step 2: Convert to fraction form
    8,436.60/12,644.10 = 4,044.60/x
  3. Step 3: Cross multiply
    8,436.60x = 12,644.10 × 4,044.60
  4. Step 4: Simplify right side
    8,436.60x = 51,140,326.86
  5. Step 5: Solve for x
    x = 51,140,326.86/8,436.60
  6. Step 6: Final answer
    x = 6,061.72

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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.