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Finding the Fourth Proportional to 58,425.28, 87,690 and 27,278.08

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Solution

The fourth proportional to 58,425.28, 87,690 and 27,278.08 is: 40,941.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,425.28 : 87,690 = 27,278.08 : x
  2. Step 2: Convert to fraction form
    58,425.28/87,690 = 27,278.08/x
  3. Step 3: Cross multiply
    58,425.28x = 87,690 × 27,278.08
  4. Step 4: Simplify right side
    58,425.28x = 2,392,014,835.20
  5. Step 5: Solve for x
    x = 2,392,014,835.20/58,425.28
  6. Step 6: Final answer
    x = 40,941.44

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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.