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Finding the Fourth Proportional to 4,831.31, 7,243.42 and 1,542.51

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Solution

The fourth proportional to 4,831.31, 7,243.42 and 1,542.51 is: 2,312.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,831.31 : 7,243.42 = 1,542.51 : x
  2. Step 2: Convert to fraction form
    4,831.31/7,243.42 = 1,542.51/x
  3. Step 3: Cross multiply
    4,831.31x = 7,243.42 × 1,542.51
  4. Step 4: Simplify right side
    4,831.31x = 11,173,003.85
  5. Step 5: Solve for x
    x = 11,173,003.85/4,831.31
  6. Step 6: Final answer
    x = 2,312.62

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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.