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Finding the Fourth Proportional to 7,658.28, 11,495.10 and 5,945.64

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Solution

The fourth proportional to 7,658.28, 11,495.10 and 5,945.64 is: 8,924.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,658.28 : 11,495.10 = 5,945.64 : x
  2. Step 2: Convert to fraction form
    7,658.28/11,495.10 = 5,945.64/x
  3. Step 3: Cross multiply
    7,658.28x = 11,495.10 × 5,945.64
  4. Step 4: Simplify right side
    7,658.28x = 68,345,726.36
  5. Step 5: Solve for x
    x = 68,345,726.36/7,658.28
  6. Step 6: Final answer
    x = 8,924.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.