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Finding the Fourth Proportional to 41,198.90, 61,783.95 and 21,470.90

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Solution

The fourth proportional to 41,198.90, 61,783.95 and 21,470.90 is: 32,198.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,198.90 : 61,783.95 = 21,470.90 : x
  2. Step 2: Convert to fraction form
    41,198.90/61,783.95 = 21,470.90/x
  3. Step 3: Cross multiply
    41,198.90x = 61,783.95 × 21,470.90
  4. Step 4: Simplify right side
    41,198.90x = 1,326,557,012.06
  5. Step 5: Solve for x
    x = 1,326,557,012.06/41,198.90
  6. Step 6: Final answer
    x = 32,198.85

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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.