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Finding the Fourth Proportional to 34,149.20, 51,223.80 and 27,928.40

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Solution

The fourth proportional to 34,149.20, 51,223.80 and 27,928.40 is: 41,892.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,149.20 : 51,223.80 = 27,928.40 : x
  2. Step 2: Convert to fraction form
    34,149.20/51,223.80 = 27,928.40/x
  3. Step 3: Cross multiply
    34,149.20x = 51,223.80 × 27,928.40
  4. Step 4: Simplify right side
    34,149.20x = 1,430,598,775.92
  5. Step 5: Solve for x
    x = 1,430,598,775.92/34,149.20
  6. Step 6: Final answer
    x = 41,892.60

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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.