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Finding the Fourth Proportional to 7,757.74, 10,699.97 and 4,772.49

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Solution

The fourth proportional to 7,757.74, 10,699.97 and 4,772.49 is: 6,582.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,757.74 : 10,699.97 = 4,772.49 : x
  2. Step 2: Convert to fraction form
    7,757.74/10,699.97 = 4,772.49/x
  3. Step 3: Cross multiply
    7,757.74x = 10,699.97 × 4,772.49
  4. Step 4: Simplify right side
    7,757.74x = 51,065,499.83
  5. Step 5: Solve for x
    x = 51,065,499.83/7,757.74
  6. Step 6: Final answer
    x = 6,582.52

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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.