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Finding the Fourth Proportional to 33,230.80, 49,846.20 and 31,848.40

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Solution

The fourth proportional to 33,230.80, 49,846.20 and 31,848.40 is: 47,772.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,230.80 : 49,846.20 = 31,848.40 : x
  2. Step 2: Convert to fraction form
    33,230.80/49,846.20 = 31,848.40/x
  3. Step 3: Cross multiply
    33,230.80x = 49,846.20 × 31,848.40
  4. Step 4: Simplify right side
    33,230.80x = 1,587,521,716.08
  5. Step 5: Solve for x
    x = 1,587,521,716.08/33,230.80
  6. Step 6: Final answer
    x = 47,772.60

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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.