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Finding the Fourth Proportional to 75,576.80, 113,365.20 and 22,986.20

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Solution

The fourth proportional to 75,576.80, 113,365.20 and 22,986.20 is: 34,479.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,576.80 : 113,365.20 = 22,986.20 : x
  2. Step 2: Convert to fraction form
    75,576.80/113,365.20 = 22,986.20/x
  3. Step 3: Cross multiply
    75,576.80x = 113,365.20 × 22,986.20
  4. Step 4: Simplify right side
    75,576.80x = 2,605,835,160.24
  5. Step 5: Solve for x
    x = 2,605,835,160.24/75,576.80
  6. Step 6: Final answer
    x = 34,479.30

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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.