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Finding the Fourth Proportional to 60,468.12, 90,664.52 and 28,876.91

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Solution

The fourth proportional to 60,468.12, 90,664.52 and 28,876.91 is: 43,297.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,468.12 : 90,664.52 = 28,876.91 : x
  2. Step 2: Convert to fraction form
    60,468.12/90,664.52 = 28,876.91/x
  3. Step 3: Cross multiply
    60,468.12x = 90,664.52 × 28,876.91
  4. Step 4: Simplify right side
    60,468.12x = 2,618,110,586.53
  5. Step 5: Solve for x
    x = 2,618,110,586.53/60,468.12
  6. Step 6: Final answer
    x = 43,297.37

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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.