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Finding the Fourth Proportional to 7,716.84, 10,644.30 and 5,064.44

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Solution

The fourth proportional to 7,716.84, 10,644.30 and 5,064.44 is: 6,985.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,716.84 : 10,644.30 = 5,064.44 : x
  2. Step 2: Convert to fraction form
    7,716.84/10,644.30 = 5,064.44/x
  3. Step 3: Cross multiply
    7,716.84x = 10,644.30 × 5,064.44
  4. Step 4: Simplify right side
    7,716.84x = 53,907,418.69
  5. Step 5: Solve for x
    x = 53,907,418.69/7,716.84
  6. Step 6: Final answer
    x = 6,985.69

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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.