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Finding the Fourth Proportional to 73,823.40, 110,735.10 and 21,229.80

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Solution

The fourth proportional to 73,823.40, 110,735.10 and 21,229.80 is: 31,844.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,823.40 : 110,735.10 = 21,229.80 : x
  2. Step 2: Convert to fraction form
    73,823.40/110,735.10 = 21,229.80/x
  3. Step 3: Cross multiply
    73,823.40x = 110,735.10 × 21,229.80
  4. Step 4: Simplify right side
    73,823.40x = 2,350,884,025.98
  5. Step 5: Solve for x
    x = 2,350,884,025.98/73,823.40
  6. Step 6: Final answer
    x = 31,844.70

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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.