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Finding the Fourth Proportional to 42,908.22, 64,292.04 and 41,268

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Solution

The fourth proportional to 42,908.22, 64,292.04 and 41,268 is: 61,834.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,908.22 : 64,292.04 = 41,268 : x
  2. Step 2: Convert to fraction form
    42,908.22/64,292.04 = 41,268/x
  3. Step 3: Cross multiply
    42,908.22x = 64,292.04 × 41,268
  4. Step 4: Simplify right side
    42,908.22x = 2,653,203,906.72
  5. Step 5: Solve for x
    x = 2,653,203,906.72/42,908.22
  6. Step 6: Final answer
    x = 61,834.40

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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.