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Finding the Fourth Proportional to 7,219.41, 9,958.99 and 4,562.21

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Solution

The fourth proportional to 7,219.41, 9,958.99 and 4,562.21 is: 6,293.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,219.41 : 9,958.99 = 4,562.21 : x
  2. Step 2: Convert to fraction form
    7,219.41/9,958.99 = 4,562.21/x
  3. Step 3: Cross multiply
    7,219.41x = 9,958.99 × 4,562.21
  4. Step 4: Simplify right side
    7,219.41x = 45,435,003.77
  5. Step 5: Solve for x
    x = 45,435,003.77/7,219.41
  6. Step 6: Final answer
    x = 6,293.45

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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.