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Finding the Fourth Proportional to 49,759.40, 74,420.40 and 41,886.20

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Solution

The fourth proportional to 49,759.40, 74,420.40 and 41,886.20 is: 62,645.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,759.40 : 74,420.40 = 41,886.20 : x
  2. Step 2: Convert to fraction form
    49,759.40/74,420.40 = 41,886.20/x
  3. Step 3: Cross multiply
    49,759.40x = 74,420.40 × 41,886.20
  4. Step 4: Simplify right side
    49,759.40x = 3,117,187,758.48
  5. Step 5: Solve for x
    x = 3,117,187,758.48/49,759.40
  6. Step 6: Final answer
    x = 62,645.20

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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.