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Finding the Fourth Proportional to 66,317.52, 99,343.02 and 32,936.60

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Solution

The fourth proportional to 66,317.52, 99,343.02 and 32,936.60 is: 49,338.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,317.52 : 99,343.02 = 32,936.60 : x
  2. Step 2: Convert to fraction form
    66,317.52/99,343.02 = 32,936.60/x
  3. Step 3: Cross multiply
    66,317.52x = 99,343.02 × 32,936.60
  4. Step 4: Simplify right side
    66,317.52x = 3,272,021,312.53
  5. Step 5: Solve for x
    x = 3,272,021,312.53/66,317.52
  6. Step 6: Final answer
    x = 49,338.72

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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.