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Finding the Fourth Proportional to 49,993.58, 75,020.63 and 21,915.25

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Solution

The fourth proportional to 49,993.58, 75,020.63 and 21,915.25 is: 32,886.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,993.58 : 75,020.63 = 21,915.25 : x
  2. Step 2: Convert to fraction form
    49,993.58/75,020.63 = 21,915.25/x
  3. Step 3: Cross multiply
    49,993.58x = 75,020.63 × 21,915.25
  4. Step 4: Simplify right side
    49,993.58x = 1,644,095,564.48
  5. Step 5: Solve for x
    x = 1,644,095,564.48/49,993.58
  6. Step 6: Final answer
    x = 32,886.13

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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.