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Finding the Fourth Proportional to 61,976.78, 85,528.62 and 33,682.47

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Solution

The fourth proportional to 61,976.78, 85,528.62 and 33,682.47 is: 46,482.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,976.78 : 85,528.62 = 33,682.47 : x
  2. Step 2: Convert to fraction form
    61,976.78/85,528.62 = 33,682.47/x
  3. Step 3: Cross multiply
    61,976.78x = 85,528.62 × 33,682.47
  4. Step 4: Simplify right side
    61,976.78x = 2,880,815,177.29
  5. Step 5: Solve for x
    x = 2,880,815,177.29/61,976.78
  6. Step 6: Final answer
    x = 46,482.17

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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.