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Finding the Fourth Proportional to 79,620.85, 119,412.06 and 23,445.69

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Solution

The fourth proportional to 79,620.85, 119,412.06 and 23,445.69 is: 35,162.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,620.85 : 119,412.06 = 23,445.69 : x
  2. Step 2: Convert to fraction form
    79,620.85/119,412.06 = 23,445.69/x
  3. Step 3: Cross multiply
    79,620.85x = 119,412.06 × 23,445.69
  4. Step 4: Simplify right side
    79,620.85x = 2,799,698,141.02
  5. Step 5: Solve for x
    x = 2,799,698,141.02/79,620.85
  6. Step 6: Final answer
    x = 35,162.88

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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.