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Finding the Fourth Proportional to 7,977.59, 11,958.21 and 3,598.12

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Solution

The fourth proportional to 7,977.59, 11,958.21 and 3,598.12 is: 5,393.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,977.59 : 11,958.21 = 3,598.12 : x
  2. Step 2: Convert to fraction form
    7,977.59/11,958.21 = 3,598.12/x
  3. Step 3: Cross multiply
    7,977.59x = 11,958.21 × 3,598.12
  4. Step 4: Simplify right side
    7,977.59x = 43,027,044.67
  5. Step 5: Solve for x
    x = 43,027,044.67/7,977.59
  6. Step 6: Final answer
    x = 5,393.49

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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.