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Finding the Fourth Proportional to 7,275.41, 10,915.13 and 2,895.94

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Solution

The fourth proportional to 7,275.41, 10,915.13 and 2,895.94 is: 4,344.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,275.41 : 10,915.13 = 2,895.94 : x
  2. Step 2: Convert to fraction form
    7,275.41/10,915.13 = 2,895.94/x
  3. Step 3: Cross multiply
    7,275.41x = 10,915.13 × 2,895.94
  4. Step 4: Simplify right side
    7,275.41x = 31,609,546.74
  5. Step 5: Solve for x
    x = 31,609,546.74/7,275.41
  6. Step 6: Final answer
    x = 4,344.71

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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.