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Finding the Fourth Proportional to 61,983.84, 85,534.20 and 33,689.32

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Solution

The fourth proportional to 61,983.84, 85,534.20 and 33,689.32 is: 46,489.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,983.84 : 85,534.20 = 33,689.32 : x
  2. Step 2: Convert to fraction form
    61,983.84/85,534.20 = 33,689.32/x
  3. Step 3: Cross multiply
    61,983.84x = 85,534.20 × 33,689.32
  4. Step 4: Simplify right side
    61,983.84x = 2,881,589,034.74
  5. Step 5: Solve for x
    x = 2,881,589,034.74/61,983.84
  6. Step 6: Final answer
    x = 46,489.36

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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.