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Finding the Fourth Proportional to 47,272.40, 70,843.80 and 38,524.40

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Solution

The fourth proportional to 47,272.40, 70,843.80 and 38,524.40 is: 57,733.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,272.40 : 70,843.80 = 38,524.40 : x
  2. Step 2: Convert to fraction form
    47,272.40/70,843.80 = 38,524.40/x
  3. Step 3: Cross multiply
    47,272.40x = 70,843.80 × 38,524.40
  4. Step 4: Simplify right side
    47,272.40x = 2,729,214,888.72
  5. Step 5: Solve for x
    x = 2,729,214,888.72/47,272.40
  6. Step 6: Final answer
    x = 57,733.79

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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.