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Finding the Fourth Proportional to 7,794.63, 10,756.09 and 4,257.84

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Solution

The fourth proportional to 7,794.63, 10,756.09 and 4,257.84 is: 5,875.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,794.63 : 10,756.09 = 4,257.84 : x
  2. Step 2: Convert to fraction form
    7,794.63/10,756.09 = 4,257.84/x
  3. Step 3: Cross multiply
    7,794.63x = 10,756.09 × 4,257.84
  4. Step 4: Simplify right side
    7,794.63x = 45,797,755.90
  5. Step 5: Solve for x
    x = 45,797,755.90/7,794.63
  6. Step 6: Final answer
    x = 5,875.55

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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.