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Finding the Fourth Proportional to 58,286.60, 87,228.30 and 34,929.80

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Solution

The fourth proportional to 58,286.60, 87,228.30 and 34,929.80 is: 52,273.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,286.60 : 87,228.30 = 34,929.80 : x
  2. Step 2: Convert to fraction form
    58,286.60/87,228.30 = 34,929.80/x
  3. Step 3: Cross multiply
    58,286.60x = 87,228.30 × 34,929.80
  4. Step 4: Simplify right side
    58,286.60x = 3,046,867,073.34
  5. Step 5: Solve for x
    x = 3,046,867,073.34/58,286.60
  6. Step 6: Final answer
    x = 52,273.89

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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.