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Finding the Fourth Proportional to 66,535.53, 91,797.05 and 43,885.80

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Solution

The fourth proportional to 66,535.53, 91,797.05 and 43,885.80 is: 60,547.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,535.53 : 91,797.05 = 43,885.80 : x
  2. Step 2: Convert to fraction form
    66,535.53/91,797.05 = 43,885.80/x
  3. Step 3: Cross multiply
    66,535.53x = 91,797.05 × 43,885.80
  4. Step 4: Simplify right side
    66,535.53x = 4,028,586,839.75
  5. Step 5: Solve for x
    x = 4,028,586,839.75/66,535.53
  6. Step 6: Final answer
    x = 60,547.91

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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.