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Finding the Fourth Proportional to 70,348.75, 105,549.05 and 37,067.47

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Solution

The fourth proportional to 70,348.75, 105,549.05 and 37,067.47 is: 55,614.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,348.75 : 105,549.05 = 37,067.47 : x
  2. Step 2: Convert to fraction form
    70,348.75/105,549.05 = 37,067.47/x
  3. Step 3: Cross multiply
    70,348.75x = 105,549.05 × 37,067.47
  4. Step 4: Simplify right side
    70,348.75x = 3,912,436,244.40
  5. Step 5: Solve for x
    x = 3,912,436,244.40/70,348.75
  6. Step 6: Final answer
    x = 55,614.87

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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.