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Finding the Fourth Proportional to 60,675.72, 91,023.48 and 19,113

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Solution

The fourth proportional to 60,675.72, 91,023.48 and 19,113 is: 28,672.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,675.72 : 91,023.48 = 19,113 : x
  2. Step 2: Convert to fraction form
    60,675.72/91,023.48 = 19,113/x
  3. Step 3: Cross multiply
    60,675.72x = 91,023.48 × 19,113
  4. Step 4: Simplify right side
    60,675.72x = 1,739,731,773.24
  5. Step 5: Solve for x
    x = 1,739,731,773.24/60,675.72
  6. Step 6: Final answer
    x = 28,672.62

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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.