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Finding the Fourth Proportional to 62,959.59, 94,416.71 and 20,831.90

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Solution

The fourth proportional to 62,959.59, 94,416.71 and 20,831.90 is: 31,240.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,959.59 : 94,416.71 = 20,831.90 : x
  2. Step 2: Convert to fraction form
    62,959.59/94,416.71 = 20,831.90/x
  3. Step 3: Cross multiply
    62,959.59x = 94,416.71 × 20,831.90
  4. Step 4: Simplify right side
    62,959.59x = 1,966,879,028.87
  5. Step 5: Solve for x
    x = 1,966,879,028.87/62,959.59
  6. Step 6: Final answer
    x = 31,240.34

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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.