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Finding the Fourth Proportional to 7,958.64, 11,933.84 and 3,572.32

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Solution

The fourth proportional to 7,958.64, 11,933.84 and 3,572.32 is: 5,356.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,958.64 : 11,933.84 = 3,572.32 : x
  2. Step 2: Convert to fraction form
    7,958.64/11,933.84 = 3,572.32/x
  3. Step 3: Cross multiply
    7,958.64x = 11,933.84 × 3,572.32
  4. Step 4: Simplify right side
    7,958.64x = 42,631,495.31
  5. Step 5: Solve for x
    x = 42,631,495.31/7,958.64
  6. Step 6: Final answer
    x = 5,356.63

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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.