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Finding the Fourth Proportional to 52,697.53, 79,046.43 and 21,532.78

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Solution

The fourth proportional to 52,697.53, 79,046.43 and 21,532.78 is: 32,299.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,697.53 : 79,046.43 = 21,532.78 : x
  2. Step 2: Convert to fraction form
    52,697.53/79,046.43 = 21,532.78/x
  3. Step 3: Cross multiply
    52,697.53x = 79,046.43 × 21,532.78
  4. Step 4: Simplify right side
    52,697.53x = 1,702,089,386.98
  5. Step 5: Solve for x
    x = 1,702,089,386.98/52,697.53
  6. Step 6: Final answer
    x = 32,299.23

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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.