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Finding the Fourth Proportional to 70,008.10, 96,611.34 and 39,793.62

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Solution

The fourth proportional to 70,008.10, 96,611.34 and 39,793.62 is: 54,915.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,008.10 : 96,611.34 = 39,793.62 : x
  2. Step 2: Convert to fraction form
    70,008.10/96,611.34 = 39,793.62/x
  3. Step 3: Cross multiply
    70,008.10x = 96,611.34 × 39,793.62
  4. Step 4: Simplify right side
    70,008.10x = 3,844,514,468.59
  5. Step 5: Solve for x
    x = 3,844,514,468.59/70,008.10
  6. Step 6: Final answer
    x = 54,915.28

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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.