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Finding the Fourth Proportional to 52,659.54, 79,003.14 and 18,928.98

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Solution

The fourth proportional to 52,659.54, 79,003.14 and 18,928.98 is: 28,398.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,659.54 : 79,003.14 = 18,928.98 : x
  2. Step 2: Convert to fraction form
    52,659.54/79,003.14 = 18,928.98/x
  3. Step 3: Cross multiply
    52,659.54x = 79,003.14 × 18,928.98
  4. Step 4: Simplify right side
    52,659.54x = 1,495,448,857.00
  5. Step 5: Solve for x
    x = 1,495,448,857.00/52,659.54
  6. Step 6: Final answer
    x = 28,398.44

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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.