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Finding the Fourth Proportional to 79,308.96, 118,949.92 and 25,999.88

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Solution

The fourth proportional to 79,308.96, 118,949.92 and 25,999.88 is: 38,995.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,308.96 : 118,949.92 = 25,999.88 : x
  2. Step 2: Convert to fraction form
    79,308.96/118,949.92 = 25,999.88/x
  3. Step 3: Cross multiply
    79,308.96x = 118,949.92 × 25,999.88
  4. Step 4: Simplify right side
    79,308.96x = 3,092,683,646.01
  5. Step 5: Solve for x
    x = 3,092,683,646.01/79,308.96
  6. Step 6: Final answer
    x = 38,995.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.