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Finding the Fourth Proportional to 61,988.71, 85,544.72 and 33,694.38

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Solution

The fourth proportional to 61,988.71, 85,544.72 and 33,694.38 is: 46,498.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,988.71 : 85,544.72 = 33,694.38 : x
  2. Step 2: Convert to fraction form
    61,988.71/85,544.72 = 33,694.38/x
  3. Step 3: Cross multiply
    61,988.71x = 85,544.72 × 33,694.38
  4. Step 4: Simplify right side
    61,988.71x = 2,882,376,302.67
  5. Step 5: Solve for x
    x = 2,882,376,302.67/61,988.71
  6. Step 6: Final answer
    x = 46,498.41

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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.