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Finding the Fourth Proportional to 39,951.80, 59,927.70 and 12,246.20

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Solution

The fourth proportional to 39,951.80, 59,927.70 and 12,246.20 is: 18,369.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,951.80 : 59,927.70 = 12,246.20 : x
  2. Step 2: Convert to fraction form
    39,951.80/59,927.70 = 12,246.20/x
  3. Step 3: Cross multiply
    39,951.80x = 59,927.70 × 12,246.20
  4. Step 4: Simplify right side
    39,951.80x = 733,886,599.74
  5. Step 5: Solve for x
    x = 733,886,599.74/39,951.80
  6. Step 6: Final answer
    x = 18,369.30

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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.