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Finding the Fourth Proportional to 82,591.16, 123,886.74 and 35,843

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Solution

The fourth proportional to 82,591.16, 123,886.74 and 35,843 is: 53,764.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,591.16 : 123,886.74 = 35,843 : x
  2. Step 2: Convert to fraction form
    82,591.16/123,886.74 = 35,843/x
  3. Step 3: Cross multiply
    82,591.16x = 123,886.74 × 35,843
  4. Step 4: Simplify right side
    82,591.16x = 4,440,472,421.82
  5. Step 5: Solve for x
    x = 4,440,472,421.82/82,591.16
  6. Step 6: Final answer
    x = 53,764.50

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.