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Finding the Fourth Proportional to 5,555.99, 7,663.67 and 3,742.07

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Solution

The fourth proportional to 5,555.99, 7,663.67 and 3,742.07 is: 5,161.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,555.99 : 7,663.67 = 3,742.07 : x
  2. Step 2: Convert to fraction form
    5,555.99/7,663.67 = 3,742.07/x
  3. Step 3: Cross multiply
    5,555.99x = 7,663.67 × 3,742.07
  4. Step 4: Simplify right side
    5,555.99x = 28,677,932.57
  5. Step 5: Solve for x
    x = 28,677,932.57/5,555.99
  6. Step 6: Final answer
    x = 5,161.63

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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.