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Finding the Fourth Proportional to 70,225.15, 96,919.22 and 39,604.08

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Solution

The fourth proportional to 70,225.15, 96,919.22 and 39,604.08 is: 54,658.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,225.15 : 96,919.22 = 39,604.08 : x
  2. Step 2: Convert to fraction form
    70,225.15/96,919.22 = 39,604.08/x
  3. Step 3: Cross multiply
    70,225.15x = 96,919.22 × 39,604.08
  4. Step 4: Simplify right side
    70,225.15x = 3,838,396,542.42
  5. Step 5: Solve for x
    x = 3,838,396,542.42/70,225.15
  6. Step 6: Final answer
    x = 54,658.43

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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.