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Finding the Fourth Proportional to 79,760.59, 119,641.35 and 20,592.22

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Solution

The fourth proportional to 79,760.59, 119,641.35 and 20,592.22 is: 30,888.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,760.59 : 119,641.35 = 20,592.22 : x
  2. Step 2: Convert to fraction form
    79,760.59/119,641.35 = 20,592.22/x
  3. Step 3: Cross multiply
    79,760.59x = 119,641.35 × 20,592.22
  4. Step 4: Simplify right side
    79,760.59x = 2,463,681,000.30
  5. Step 5: Solve for x
    x = 2,463,681,000.30/79,760.59
  6. Step 6: Final answer
    x = 30,888.45

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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.