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Finding the Fourth Proportional to 62,979.04, 86,911.04 and 34,684.64

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Solution

The fourth proportional to 62,979.04, 86,911.04 and 34,684.64 is: 47,864.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,979.04 : 86,911.04 = 34,684.64 : x
  2. Step 2: Convert to fraction form
    62,979.04/86,911.04 = 34,684.64/x
  3. Step 3: Cross multiply
    62,979.04x = 86,911.04 × 34,684.64
  4. Step 4: Simplify right side
    62,979.04x = 3,014,478,134.43
  5. Step 5: Solve for x
    x = 3,014,478,134.43/62,979.04
  6. Step 6: Final answer
    x = 47,864.78

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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.