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Finding the Fourth Proportional to 6,965.91, 9,614.49 and 4,815.48

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Solution

The fourth proportional to 6,965.91, 9,614.49 and 4,815.48 is: 6,646.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,965.91 : 9,614.49 = 4,815.48 : x
  2. Step 2: Convert to fraction form
    6,965.91/9,614.49 = 4,815.48/x
  3. Step 3: Cross multiply
    6,965.91x = 9,614.49 × 4,815.48
  4. Step 4: Simplify right side
    6,965.91x = 46,298,384.31
  5. Step 5: Solve for x
    x = 46,298,384.31/6,965.91
  6. Step 6: Final answer
    x = 6,646.42

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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.