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Finding the Fourth Proportional to 70,012.47, 96,613.41 and 39,793.60

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Solution

The fourth proportional to 70,012.47, 96,613.41 and 39,793.60 is: 54,913.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,012.47 : 96,613.41 = 39,793.60 : x
  2. Step 2: Convert to fraction form
    70,012.47/96,613.41 = 39,793.60/x
  3. Step 3: Cross multiply
    70,012.47x = 96,613.41 × 39,793.60
  4. Step 4: Simplify right side
    70,012.47x = 3,844,595,392.18
  5. Step 5: Solve for x
    x = 3,844,595,392.18/70,012.47
  6. Step 6: Final answer
    x = 54,913.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.