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Finding the Fourth Proportional to 34,251.78, 47,282.03 and 20,827.34

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Solution

The fourth proportional to 34,251.78, 47,282.03 and 20,827.34 is: 28,750.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,251.78 : 47,282.03 = 20,827.34 : x
  2. Step 2: Convert to fraction form
    34,251.78/47,282.03 = 20,827.34/x
  3. Step 3: Cross multiply
    34,251.78x = 47,282.03 × 20,827.34
  4. Step 4: Simplify right side
    34,251.78x = 984,759,095.52
  5. Step 5: Solve for x
    x = 984,759,095.52/34,251.78
  6. Step 6: Final answer
    x = 28,750.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.