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Finding the Fourth Proportional to 70,253.85, 96,951.74 and 38,424.80

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Solution

The fourth proportional to 70,253.85, 96,951.74 and 38,424.80 is: 53,026.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,253.85 : 96,951.74 = 38,424.80 : x
  2. Step 2: Convert to fraction form
    70,253.85/96,951.74 = 38,424.80/x
  3. Step 3: Cross multiply
    70,253.85x = 96,951.74 × 38,424.80
  4. Step 4: Simplify right side
    70,253.85x = 3,725,350,542.27
  5. Step 5: Solve for x
    x = 3,725,350,542.27/70,253.85
  6. Step 6: Final answer
    x = 53,026.99

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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.