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Finding the Fourth Proportional to 74,245.73, 111,359.55 and 21,655.27

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Solution

The fourth proportional to 74,245.73, 111,359.55 and 21,655.27 is: 32,480.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,245.73 : 111,359.55 = 21,655.27 : x
  2. Step 2: Convert to fraction form
    74,245.73/111,359.55 = 21,655.27/x
  3. Step 3: Cross multiply
    74,245.73x = 111,359.55 × 21,655.27
  4. Step 4: Simplify right side
    74,245.73x = 2,411,520,565.53
  5. Step 5: Solve for x
    x = 2,411,520,565.53/74,245.73
  6. Step 6: Final answer
    x = 32,480.26

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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.