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Finding the Fourth Proportional to 39,322.60, 58,975.60 and 12,671

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Solution

The fourth proportional to 39,322.60, 58,975.60 and 12,671 is: 19,003.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,322.60 : 58,975.60 = 12,671 : x
  2. Step 2: Convert to fraction form
    39,322.60/58,975.60 = 12,671/x
  3. Step 3: Cross multiply
    39,322.60x = 58,975.60 × 12,671
  4. Step 4: Simplify right side
    39,322.60x = 747,279,827.60
  5. Step 5: Solve for x
    x = 747,279,827.60/39,322.60
  6. Step 6: Final answer
    x = 19,003.83

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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.