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Finding the Fourth Proportional to 79,089.62, 118,646.80 and 25,769.22

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Solution

The fourth proportional to 79,089.62, 118,646.80 and 25,769.22 is: 38,657.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,089.62 : 118,646.80 = 25,769.22 : x
  2. Step 2: Convert to fraction form
    79,089.62/118,646.80 = 25,769.22/x
  3. Step 3: Cross multiply
    79,089.62x = 118,646.80 × 25,769.22
  4. Step 4: Simplify right side
    79,089.62x = 3,057,435,722.01
  5. Step 5: Solve for x
    x = 3,057,435,722.01/79,089.62
  6. Step 6: Final answer
    x = 38,657.86

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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.