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Finding the Fourth Proportional to 49,482.90, 68,286.24 and 28,260.90

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Solution

The fourth proportional to 49,482.90, 68,286.24 and 28,260.90 is: 38,999.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,482.90 : 68,286.24 = 28,260.90 : x
  2. Step 2: Convert to fraction form
    49,482.90/68,286.24 = 28,260.90/x
  3. Step 3: Cross multiply
    49,482.90x = 68,286.24 × 28,260.90
  4. Step 4: Simplify right side
    49,482.90x = 1,929,830,600.02
  5. Step 5: Solve for x
    x = 1,929,830,600.02/49,482.90
  6. Step 6: Final answer
    x = 38,999.95

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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.