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Finding the Fourth Proportional to 7,216.02, 9,958.14 and 4,231.90

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Solution

The fourth proportional to 7,216.02, 9,958.14 and 4,231.90 is: 5,840.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,216.02 : 9,958.14 = 4,231.90 : x
  2. Step 2: Convert to fraction form
    7,216.02/9,958.14 = 4,231.90/x
  3. Step 3: Cross multiply
    7,216.02x = 9,958.14 × 4,231.90
  4. Step 4: Simplify right side
    7,216.02x = 42,141,852.67
  5. Step 5: Solve for x
    x = 42,141,852.67/7,216.02
  6. Step 6: Final answer
    x = 5,840.04

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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.