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Finding the Fourth Proportional to 47,265.40, 70,811.70 and 38,452.60

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Solution

The fourth proportional to 47,265.40, 70,811.70 and 38,452.60 is: 57,608.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,265.40 : 70,811.70 = 38,452.60 : x
  2. Step 2: Convert to fraction form
    47,265.40/70,811.70 = 38,452.60/x
  3. Step 3: Cross multiply
    47,265.40x = 70,811.70 × 38,452.60
  4. Step 4: Simplify right side
    47,265.40x = 2,722,893,975.42
  5. Step 5: Solve for x
    x = 2,722,893,975.42/47,265.40
  6. Step 6: Final answer
    x = 57,608.61

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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.