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Finding the Fourth Proportional to 25,267.20, 37,900.80 and 8,851.20

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Solution

The fourth proportional to 25,267.20, 37,900.80 and 8,851.20 is: 13,276.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,267.20 : 37,900.80 = 8,851.20 : x
  2. Step 2: Convert to fraction form
    25,267.20/37,900.80 = 8,851.20/x
  3. Step 3: Cross multiply
    25,267.20x = 37,900.80 × 8,851.20
  4. Step 4: Simplify right side
    25,267.20x = 335,467,560.96
  5. Step 5: Solve for x
    x = 335,467,560.96/25,267.20
  6. Step 6: Final answer
    x = 13,276.80

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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.