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Finding the Fourth Proportional to 48,305.65, 72,458.49 and 12,766.90

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Solution

The fourth proportional to 48,305.65, 72,458.49 and 12,766.90 is: 19,150.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,305.65 : 72,458.49 = 12,766.90 : x
  2. Step 2: Convert to fraction form
    48,305.65/72,458.49 = 12,766.90/x
  3. Step 3: Cross multiply
    48,305.65x = 72,458.49 × 12,766.90
  4. Step 4: Simplify right side
    48,305.65x = 925,070,295.98
  5. Step 5: Solve for x
    x = 925,070,295.98/48,305.65
  6. Step 6: Final answer
    x = 19,150.35

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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.