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Finding the Fourth Proportional to 52,646.70, 79,325.24 and 43,491.80

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Solution

The fourth proportional to 52,646.70, 79,325.24 and 43,491.80 is: 65,531.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,646.70 : 79,325.24 = 43,491.80 : x
  2. Step 2: Convert to fraction form
    52,646.70/79,325.24 = 43,491.80/x
  3. Step 3: Cross multiply
    52,646.70x = 79,325.24 × 43,491.80
  4. Step 4: Simplify right side
    52,646.70x = 3,449,997,473.03
  5. Step 5: Solve for x
    x = 3,449,997,473.03/52,646.70
  6. Step 6: Final answer
    x = 65,531.12

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.