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Finding the Fourth Proportional to 35,479.86, 48,960.54 and 20,362.02

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Solution

The fourth proportional to 35,479.86, 48,960.54 and 20,362.02 is: 28,098.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,479.86 : 48,960.54 = 20,362.02 : x
  2. Step 2: Convert to fraction form
    35,479.86/48,960.54 = 20,362.02/x
  3. Step 3: Cross multiply
    35,479.86x = 48,960.54 × 20,362.02
  4. Step 4: Simplify right side
    35,479.86x = 996,935,494.69
  5. Step 5: Solve for x
    x = 996,935,494.69/35,479.86
  6. Step 6: Final answer
    x = 28,098.63

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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.