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Finding the Fourth Proportional to 38,671.52, 58,010.08 and 12,014

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Solution

The fourth proportional to 38,671.52, 58,010.08 and 12,014 is: 18,021.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,671.52 : 58,010.08 = 12,014 : x
  2. Step 2: Convert to fraction form
    38,671.52/58,010.08 = 12,014/x
  3. Step 3: Cross multiply
    38,671.52x = 58,010.08 × 12,014
  4. Step 4: Simplify right side
    38,671.52x = 696,933,101.12
  5. Step 5: Solve for x
    x = 696,933,101.12/38,671.52
  6. Step 6: Final answer
    x = 18,021.87

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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.