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Finding the Fourth Proportional to 45,323.72, 67,978.55 and 23,153.48

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Solution

The fourth proportional to 45,323.72, 67,978.55 and 23,153.48 is: 34,726.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,323.72 : 67,978.55 = 23,153.48 : x
  2. Step 2: Convert to fraction form
    45,323.72/67,978.55 = 23,153.48/x
  3. Step 3: Cross multiply
    45,323.72x = 67,978.55 × 23,153.48
  4. Step 4: Simplify right side
    45,323.72x = 1,573,939,997.85
  5. Step 5: Solve for x
    x = 1,573,939,997.85/45,323.72
  6. Step 6: Final answer
    x = 34,726.63

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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.