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Finding the Fourth Proportional to 7,442.91, 11,164.37 and 3,535.47

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Solution

The fourth proportional to 7,442.91, 11,164.37 and 3,535.47 is: 5,303.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,442.91 : 11,164.37 = 3,535.47 : x
  2. Step 2: Convert to fraction form
    7,442.91/11,164.37 = 3,535.47/x
  3. Step 3: Cross multiply
    7,442.91x = 11,164.37 × 3,535.47
  4. Step 4: Simplify right side
    7,442.91x = 39,471,295.20
  5. Step 5: Solve for x
    x = 39,471,295.20/7,442.91
  6. Step 6: Final answer
    x = 5,303.21

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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.