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Finding the Fourth Proportional to 7,181.58, 10,761.99 and 4,958.13

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Solution

The fourth proportional to 7,181.58, 10,761.99 and 4,958.13 is: 7,430.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,181.58 : 10,761.99 = 4,958.13 : x
  2. Step 2: Convert to fraction form
    7,181.58/10,761.99 = 4,958.13/x
  3. Step 3: Cross multiply
    7,181.58x = 10,761.99 × 4,958.13
  4. Step 4: Simplify right side
    7,181.58x = 53,359,345.48
  5. Step 5: Solve for x
    x = 53,359,345.48/7,181.58
  6. Step 6: Final answer
    x = 7,430.03

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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.