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Finding the Fourth Proportional to 6,116.48, 8,440.80 and 3,632

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Solution

The fourth proportional to 6,116.48, 8,440.80 and 3,632 is: 5,012.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,116.48 : 8,440.80 = 3,632 : x
  2. Step 2: Convert to fraction form
    6,116.48/8,440.80 = 3,632/x
  3. Step 3: Cross multiply
    6,116.48x = 8,440.80 × 3,632
  4. Step 4: Simplify right side
    6,116.48x = 30,656,985.60
  5. Step 5: Solve for x
    x = 30,656,985.60/6,116.48
  6. Step 6: Final answer
    x = 5,012.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.