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Finding the Fourth Proportional to 8,909.86, 13,360.70 and 2,583.30

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Solution

The fourth proportional to 8,909.86, 13,360.70 and 2,583.30 is: 3,873.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,909.86 : 13,360.70 = 2,583.30 : x
  2. Step 2: Convert to fraction form
    8,909.86/13,360.70 = 2,583.30/x
  3. Step 3: Cross multiply
    8,909.86x = 13,360.70 × 2,583.30
  4. Step 4: Simplify right side
    8,909.86x = 34,514,696.31
  5. Step 5: Solve for x
    x = 34,514,696.31/8,909.86
  6. Step 6: Final answer
    x = 3,873.76

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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.