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Finding the Fourth Proportional to 5,531.99, 7,636.76 and 3,543.71

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Solution

The fourth proportional to 5,531.99, 7,636.76 and 3,543.71 is: 4,891.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,531.99 : 7,636.76 = 3,543.71 : x
  2. Step 2: Convert to fraction form
    5,531.99/7,636.76 = 3,543.71/x
  3. Step 3: Cross multiply
    5,531.99x = 7,636.76 × 3,543.71
  4. Step 4: Simplify right side
    5,531.99x = 27,062,406.88
  5. Step 5: Solve for x
    x = 27,062,406.88/5,531.99
  6. Step 6: Final answer
    x = 4,891.99

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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.