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Finding the Fourth Proportional to 61,983.77, 85,538.16 and 33,689.52

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Solution

The fourth proportional to 61,983.77, 85,538.16 and 33,689.52 is: 46,491.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,983.77 : 85,538.16 = 33,689.52 : x
  2. Step 2: Convert to fraction form
    61,983.77/85,538.16 = 33,689.52/x
  3. Step 3: Cross multiply
    61,983.77x = 85,538.16 × 33,689.52
  4. Step 4: Simplify right side
    61,983.77x = 2,881,739,552.08
  5. Step 5: Solve for x
    x = 2,881,739,552.08/61,983.77
  6. Step 6: Final answer
    x = 46,491.84

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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.