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Finding the Fourth Proportional to 3,118.71, 4,304.42 and 1,793.28

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Solution

The fourth proportional to 3,118.71, 4,304.42 and 1,793.28 is: 2,475.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,118.71 : 4,304.42 = 1,793.28 : x
  2. Step 2: Convert to fraction form
    3,118.71/4,304.42 = 1,793.28/x
  3. Step 3: Cross multiply
    3,118.71x = 4,304.42 × 1,793.28
  4. Step 4: Simplify right side
    3,118.71x = 7,719,030.30
  5. Step 5: Solve for x
    x = 7,719,030.30/3,118.71
  6. Step 6: Final answer
    x = 2,475.07

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1.5x scale

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.