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Finding the Fourth Proportional to 3,672.99, 5,507.64 and 1,332.90

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Solution

The fourth proportional to 3,672.99, 5,507.64 and 1,332.90 is: 1,998.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,672.99 : 5,507.64 = 1,332.90 : x
  2. Step 2: Convert to fraction form
    3,672.99/5,507.64 = 1,332.90/x
  3. Step 3: Cross multiply
    3,672.99x = 5,507.64 × 1,332.90
  4. Step 4: Simplify right side
    3,672.99x = 7,341,133.36
  5. Step 5: Solve for x
    x = 7,341,133.36/3,672.99
  6. Step 6: Final answer
    x = 1,998.68

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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.