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Finding the Fourth Proportional to 5,359.86, 8,019.63 and 3,719.58

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Solution

The fourth proportional to 5,359.86, 8,019.63 and 3,719.58 is: 5,565.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,359.86 : 8,019.63 = 3,719.58 : x
  2. Step 2: Convert to fraction form
    5,359.86/8,019.63 = 3,719.58/x
  3. Step 3: Cross multiply
    5,359.86x = 8,019.63 × 3,719.58
  4. Step 4: Simplify right side
    5,359.86x = 29,829,655.36
  5. Step 5: Solve for x
    x = 29,829,655.36/5,359.86
  6. Step 6: Final answer
    x = 5,565.38

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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.