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Finding the Fourth Proportional to 64,409.22, 88,876.17 and 35,728.47

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Solution

The fourth proportional to 64,409.22, 88,876.17 and 35,728.47 is: 49,300.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,409.22 : 88,876.17 = 35,728.47 : x
  2. Step 2: Convert to fraction form
    64,409.22/88,876.17 = 35,728.47/x
  3. Step 3: Cross multiply
    64,409.22x = 88,876.17 × 35,728.47
  4. Step 4: Simplify right side
    64,409.22x = 3,175,409,573.56
  5. Step 5: Solve for x
    x = 3,175,409,573.56/64,409.22
  6. Step 6: Final answer
    x = 49,300.54

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.