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Finding the Fourth Proportional to 7,772.71, 10,717.87 and 5,250.44

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Solution

The fourth proportional to 7,772.71, 10,717.87 and 5,250.44 is: 7,239.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,772.71 : 10,717.87 = 5,250.44 : x
  2. Step 2: Convert to fraction form
    7,772.71/10,717.87 = 5,250.44/x
  3. Step 3: Cross multiply
    7,772.71x = 10,717.87 × 5,250.44
  4. Step 4: Simplify right side
    7,772.71x = 56,273,541.80
  5. Step 5: Solve for x
    x = 56,273,541.80/7,772.71
  6. Step 6: Final answer
    x = 7,239.89

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1.5x scale

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.