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Finding the Fourth Proportional to 60,884.60, 91,341.30 and 19,331.60

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Solution

The fourth proportional to 60,884.60, 91,341.30 and 19,331.60 is: 29,001.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,884.60 : 91,341.30 = 19,331.60 : x
  2. Step 2: Convert to fraction form
    60,884.60/91,341.30 = 19,331.60/x
  3. Step 3: Cross multiply
    60,884.60x = 91,341.30 × 19,331.60
  4. Step 4: Simplify right side
    60,884.60x = 1,765,773,475.08
  5. Step 5: Solve for x
    x = 1,765,773,475.08/60,884.60
  6. Step 6: Final answer
    x = 29,001.97

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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.