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Finding the Fourth Proportional to 1,367.87, 2,051.80 and 502.18

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Solution

The fourth proportional to 1,367.87, 2,051.80 and 502.18 is: 753.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,367.87 : 2,051.80 = 502.18 : x
  2. Step 2: Convert to fraction form
    1,367.87/2,051.80 = 502.18/x
  3. Step 3: Cross multiply
    1,367.87x = 2,051.80 × 502.18
  4. Step 4: Simplify right side
    1,367.87x = 1,030,366.54
  5. Step 5: Solve for x
    x = 1,030,366.54/1,367.87
  6. Step 6: Final answer
    x = 753.27

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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.