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Finding the Fourth Proportional to 5,543.69, 7,651.55 and 3,776

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Solution

The fourth proportional to 5,543.69, 7,651.55 and 3,776 is: 5,211.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,543.69 : 7,651.55 = 3,776 : x
  2. Step 2: Convert to fraction form
    5,543.69/7,651.55 = 3,776/x
  3. Step 3: Cross multiply
    5,543.69x = 7,651.55 × 3,776
  4. Step 4: Simplify right side
    5,543.69x = 28,892,252.80
  5. Step 5: Solve for x
    x = 28,892,252.80/5,543.69
  6. Step 6: Final answer
    x = 5,211.74

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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.