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Finding the Fourth Proportional to 3,596.16, 5,397.60 and 1,866

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Solution

The fourth proportional to 3,596.16, 5,397.60 and 1,866 is: 2,800.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,596.16 : 5,397.60 = 1,866 : x
  2. Step 2: Convert to fraction form
    3,596.16/5,397.60 = 1,866/x
  3. Step 3: Cross multiply
    3,596.16x = 5,397.60 × 1,866
  4. Step 4: Simplify right side
    3,596.16x = 10,071,921.60
  5. Step 5: Solve for x
    x = 10,071,921.60/3,596.16
  6. Step 6: Final answer
    x = 2,800.74

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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.