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Finding the Fourth Proportional to 74,497.60, 111,730.72 and 21,892.80

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Solution

The fourth proportional to 74,497.60, 111,730.72 and 21,892.80 is: 32,834.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,497.60 : 111,730.72 = 21,892.80 : x
  2. Step 2: Convert to fraction form
    74,497.60/111,730.72 = 21,892.80/x
  3. Step 3: Cross multiply
    74,497.60x = 111,730.72 × 21,892.80
  4. Step 4: Simplify right side
    74,497.60x = 2,446,098,306.82
  5. Step 5: Solve for x
    x = 2,446,098,306.82/74,497.60
  6. Step 6: Final answer
    x = 32,834.59

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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.