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Finding the Fourth Proportional to 61,282.37, 84,578.88 and 37,422.81

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Solution

The fourth proportional to 61,282.37, 84,578.88 and 37,422.81 is: 51,649.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,282.37 : 84,578.88 = 37,422.81 : x
  2. Step 2: Convert to fraction form
    61,282.37/84,578.88 = 37,422.81/x
  3. Step 3: Cross multiply
    61,282.37x = 84,578.88 × 37,422.81
  4. Step 4: Simplify right side
    61,282.37x = 3,165,179,356.25
  5. Step 5: Solve for x
    x = 3,165,179,356.25/61,282.37
  6. Step 6: Final answer
    x = 51,649.10

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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.