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Finding the Fourth Proportional to 45,955.69, 68,915.76 and 17,871.95

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Solution

The fourth proportional to 45,955.69, 68,915.76 and 17,871.95 is: 26,801.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,955.69 : 68,915.76 = 17,871.95 : x
  2. Step 2: Convert to fraction form
    45,955.69/68,915.76 = 17,871.95/x
  3. Step 3: Cross multiply
    45,955.69x = 68,915.76 × 17,871.95
  4. Step 4: Simplify right side
    45,955.69x = 1,231,659,016.93
  5. Step 5: Solve for x
    x = 1,231,659,016.93/45,955.69
  6. Step 6: Final answer
    x = 26,801.01

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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.