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Finding the Fourth Proportional to 48,343.80, 66,745.44 and 43,299.12

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Solution

The fourth proportional to 48,343.80, 66,745.44 and 43,299.12 is: 59,780.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,343.80 : 66,745.44 = 43,299.12 : x
  2. Step 2: Convert to fraction form
    48,343.80/66,745.44 = 43,299.12/x
  3. Step 3: Cross multiply
    48,343.80x = 66,745.44 × 43,299.12
  4. Step 4: Simplify right side
    48,343.80x = 2,890,018,816.01
  5. Step 5: Solve for x
    x = 2,890,018,816.01/48,343.80
  6. Step 6: Final answer
    x = 59,780.55

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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.