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Finding the Fourth Proportional to 7,216.64, 9,961.04 and 4,232.60

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Solution

The fourth proportional to 7,216.64, 9,961.04 and 4,232.60 is: 5,842.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,216.64 : 9,961.04 = 4,232.60 : x
  2. Step 2: Convert to fraction form
    7,216.64/9,961.04 = 4,232.60/x
  3. Step 3: Cross multiply
    7,216.64x = 9,961.04 × 4,232.60
  4. Step 4: Simplify right side
    7,216.64x = 42,161,097.90
  5. Step 5: Solve for x
    x = 42,161,097.90/7,216.64
  6. Step 6: Final answer
    x = 5,842.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.