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Finding the Fourth Proportional to 25,300.80, 37,951.20 and 19,468.80

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Solution

The fourth proportional to 25,300.80, 37,951.20 and 19,468.80 is: 29,203.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,300.80 : 37,951.20 = 19,468.80 : x
  2. Step 2: Convert to fraction form
    25,300.80/37,951.20 = 19,468.80/x
  3. Step 3: Cross multiply
    25,300.80x = 37,951.20 × 19,468.80
  4. Step 4: Simplify right side
    25,300.80x = 738,864,322.56
  5. Step 5: Solve for x
    x = 738,864,322.56/25,300.80
  6. Step 6: Final answer
    x = 29,203.20

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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.