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Finding the Fourth Proportional to 62,918.44, 86,831.02 and 36,065.40

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Solution

The fourth proportional to 62,918.44, 86,831.02 and 36,065.40 is: 49,772.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,918.44 : 86,831.02 = 36,065.40 : x
  2. Step 2: Convert to fraction form
    62,918.44/86,831.02 = 36,065.40/x
  3. Step 3: Cross multiply
    62,918.44x = 86,831.02 × 36,065.40
  4. Step 4: Simplify right side
    62,918.44x = 3,131,595,468.71
  5. Step 5: Solve for x
    x = 3,131,595,468.71/62,918.44
  6. Step 6: Final answer
    x = 49,772.30

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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.