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Finding the Fourth Proportional to 3,666.99, 5,059.12 and 2,408.72

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Solution

The fourth proportional to 3,666.99, 5,059.12 and 2,408.72 is: 3,323.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,666.99 : 5,059.12 = 2,408.72 : x
  2. Step 2: Convert to fraction form
    3,666.99/5,059.12 = 2,408.72/x
  3. Step 3: Cross multiply
    3,666.99x = 5,059.12 × 2,408.72
  4. Step 4: Simplify right side
    3,666.99x = 12,186,010.15
  5. Step 5: Solve for x
    x = 12,186,010.15/3,666.99
  6. Step 6: Final answer
    x = 3,323.16

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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.