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Finding the Fourth Proportional to 74,614.60, 111,926.28 and 21,302.48

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Solution

The fourth proportional to 74,614.60, 111,926.28 and 21,302.48 is: 31,954.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,614.60 : 111,926.28 = 21,302.48 : x
  2. Step 2: Convert to fraction form
    74,614.60/111,926.28 = 21,302.48/x
  3. Step 3: Cross multiply
    74,614.60x = 111,926.28 × 21,302.48
  4. Step 4: Simplify right side
    74,614.60x = 2,384,306,781.54
  5. Step 5: Solve for x
    x = 2,384,306,781.54/74,614.60
  6. Step 6: Final answer
    x = 31,954.97

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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.