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Finding the Fourth Proportional to 61,983.84, 85,511.52 and 36,828.48

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Solution

The fourth proportional to 61,983.84, 85,511.52 and 36,828.48 is: 50,807.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,983.84 : 85,511.52 = 36,828.48 : x
  2. Step 2: Convert to fraction form
    61,983.84/85,511.52 = 36,828.48/x
  3. Step 3: Cross multiply
    61,983.84x = 85,511.52 × 36,828.48
  4. Step 4: Simplify right side
    61,983.84x = 3,149,259,304.09
  5. Step 5: Solve for x
    x = 3,149,259,304.09/61,983.84
  6. Step 6: Final answer
    x = 50,807.75

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1.5x scale

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.