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Finding the Fourth Proportional to 7,798.87, 10,762.96 and 4,396.72

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Solution

The fourth proportional to 7,798.87, 10,762.96 and 4,396.72 is: 6,067.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,798.87 : 10,762.96 = 4,396.72 : x
  2. Step 2: Convert to fraction form
    7,798.87/10,762.96 = 4,396.72/x
  3. Step 3: Cross multiply
    7,798.87x = 10,762.96 × 4,396.72
  4. Step 4: Simplify right side
    7,798.87x = 47,321,721.49
  5. Step 5: Solve for x
    x = 47,321,721.49/7,798.87
  6. Step 6: Final answer
    x = 6,067.77

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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.