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Finding the Fourth Proportional to 7,952.20, 11,933.70 and 4,442.20

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Solution

The fourth proportional to 7,952.20, 11,933.70 and 4,442.20 is: 6,666.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,952.20 : 11,933.70 = 4,442.20 : x
  2. Step 2: Convert to fraction form
    7,952.20/11,933.70 = 4,442.20/x
  3. Step 3: Cross multiply
    7,952.20x = 11,933.70 × 4,442.20
  4. Step 4: Simplify right side
    7,952.20x = 53,011,882.14
  5. Step 5: Solve for x
    x = 53,011,882.14/7,952.20
  6. Step 6: Final answer
    x = 6,666.32

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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.