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Finding the Fourth Proportional to 35,326.78, 52,978.85 and 11,628.82

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Solution

The fourth proportional to 35,326.78, 52,978.85 and 11,628.82 is: 17,439.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,326.78 : 52,978.85 = 11,628.82 : x
  2. Step 2: Convert to fraction form
    35,326.78/52,978.85 = 11,628.82/x
  3. Step 3: Cross multiply
    35,326.78x = 52,978.85 × 11,628.82
  4. Step 4: Simplify right side
    35,326.78x = 616,081,329.55
  5. Step 5: Solve for x
    x = 616,081,329.55/35,326.78
  6. Step 6: Final answer
    x = 17,439.50

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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.