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Finding the Fourth Proportional to 70,225.59, 96,912.26 and 38,394.42

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Solution

The fourth proportional to 70,225.59, 96,912.26 and 38,394.42 is: 52,984.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,225.59 : 96,912.26 = 38,394.42 : x
  2. Step 2: Convert to fraction form
    70,225.59/96,912.26 = 38,394.42/x
  3. Step 3: Cross multiply
    70,225.59x = 96,912.26 × 38,394.42
  4. Step 4: Simplify right side
    70,225.59x = 3,720,890,013.59
  5. Step 5: Solve for x
    x = 3,720,890,013.59/70,225.59
  6. Step 6: Final answer
    x = 52,984.82

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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.