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Finding the Fourth Proportional to 7,394.01, 11,079.60 and 3,641.48

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Solution

The fourth proportional to 7,394.01, 11,079.60 and 3,641.48 is: 5,456.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,394.01 : 11,079.60 = 3,641.48 : x
  2. Step 2: Convert to fraction form
    7,394.01/11,079.60 = 3,641.48/x
  3. Step 3: Cross multiply
    7,394.01x = 11,079.60 × 3,641.48
  4. Step 4: Simplify right side
    7,394.01x = 40,346,141.81
  5. Step 5: Solve for x
    x = 40,346,141.81/7,394.01
  6. Step 6: Final answer
    x = 5,456.60

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1.5x scale

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.