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Finding the Fourth Proportional to 66,560.40, 99,773.40 and 33,229.20

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Solution

The fourth proportional to 66,560.40, 99,773.40 and 33,229.20 is: 49,810.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,560.40 : 99,773.40 = 33,229.20 : x
  2. Step 2: Convert to fraction form
    66,560.40/99,773.40 = 33,229.20/x
  3. Step 3: Cross multiply
    66,560.40x = 99,773.40 × 33,229.20
  4. Step 4: Simplify right side
    66,560.40x = 3,315,390,263.28
  5. Step 5: Solve for x
    x = 3,315,390,263.28/66,560.40
  6. Step 6: Final answer
    x = 49,810.25

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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.