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Finding the Fourth Proportional to 74,202.86, 111,304.50 and 21,613.64

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Solution

The fourth proportional to 74,202.86, 111,304.50 and 21,613.64 is: 32,420.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,202.86 : 111,304.50 = 21,613.64 : x
  2. Step 2: Convert to fraction form
    74,202.86/111,304.50 = 21,613.64/x
  3. Step 3: Cross multiply
    74,202.86x = 111,304.50 × 21,613.64
  4. Step 4: Simplify right side
    74,202.86x = 2,405,695,393.38
  5. Step 5: Solve for x
    x = 2,405,695,393.38/74,202.86
  6. Step 6: Final answer
    x = 32,420.52

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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.