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Finding the Fourth Proportional to 5,655.65, 8,477.31 and 4,831.43

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Solution

The fourth proportional to 5,655.65, 8,477.31 and 4,831.43 is: 7,241.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,655.65 : 8,477.31 = 4,831.43 : x
  2. Step 2: Convert to fraction form
    5,655.65/8,477.31 = 4,831.43/x
  3. Step 3: Cross multiply
    5,655.65x = 8,477.31 × 4,831.43
  4. Step 4: Simplify right side
    5,655.65x = 40,957,505.58
  5. Step 5: Solve for x
    x = 40,957,505.58/5,655.65
  6. Step 6: Final answer
    x = 7,241.88

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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.