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Finding the Fourth Proportional to 52,893.64, 79,344.78 and 21,729.16

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Solution

The fourth proportional to 52,893.64, 79,344.78 and 21,729.16 is: 32,595.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,893.64 : 79,344.78 = 21,729.16 : x
  2. Step 2: Convert to fraction form
    52,893.64/79,344.78 = 21,729.16/x
  3. Step 3: Cross multiply
    52,893.64x = 79,344.78 × 21,729.16
  4. Step 4: Simplify right side
    52,893.64x = 1,724,095,419.78
  5. Step 5: Solve for x
    x = 1,724,095,419.78/52,893.64
  6. Step 6: Final answer
    x = 32,595.51

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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.