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Finding the Fourth Proportional to 7,953.72, 11,930.52 and 4,395.66

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Solution

The fourth proportional to 7,953.72, 11,930.52 and 4,395.66 is: 6,593.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,953.72 : 11,930.52 = 4,395.66 : x
  2. Step 2: Convert to fraction form
    7,953.72/11,930.52 = 4,395.66/x
  3. Step 3: Cross multiply
    7,953.72x = 11,930.52 × 4,395.66
  4. Step 4: Simplify right side
    7,953.72x = 52,442,509.54
  5. Step 5: Solve for x
    x = 52,442,509.54/7,953.72
  6. Step 6: Final answer
    x = 6,593.46

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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.