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Finding the Fourth Proportional to 8,693.16, 13,042.18 and 2,853.87

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Solution

The fourth proportional to 8,693.16, 13,042.18 and 2,853.87 is: 4,281.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,693.16 : 13,042.18 = 2,853.87 : x
  2. Step 2: Convert to fraction form
    8,693.16/13,042.18 = 2,853.87/x
  3. Step 3: Cross multiply
    8,693.16x = 13,042.18 × 2,853.87
  4. Step 4: Simplify right side
    8,693.16x = 37,220,728.01
  5. Step 5: Solve for x
    x = 37,220,728.01/8,693.16
  6. Step 6: Final answer
    x = 4,281.61

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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.