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Finding the Fourth Proportional to 79,644.80, 119,478.08 and 27,040.16

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Solution

The fourth proportional to 79,644.80, 119,478.08 and 27,040.16 is: 40,563.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,644.80 : 119,478.08 = 27,040.16 : x
  2. Step 2: Convert to fraction form
    79,644.80/119,478.08 = 27,040.16/x
  3. Step 3: Cross multiply
    79,644.80x = 119,478.08 × 27,040.16
  4. Step 4: Simplify right side
    79,644.80x = 3,230,706,399.69
  5. Step 5: Solve for x
    x = 3,230,706,399.69/79,644.80
  6. Step 6: Final answer
    x = 40,563.93

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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.