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Finding the Fourth Proportional to 62,887.71, 86,786.16 and 34,208.01

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Solution

The fourth proportional to 62,887.71, 86,786.16 and 34,208.01 is: 47,207.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,887.71 : 86,786.16 = 34,208.01 : x
  2. Step 2: Convert to fraction form
    62,887.71/86,786.16 = 34,208.01/x
  3. Step 3: Cross multiply
    62,887.71x = 86,786.16 × 34,208.01
  4. Step 4: Simplify right side
    62,887.71x = 2,968,781,829.14
  5. Step 5: Solve for x
    x = 2,968,781,829.14/62,887.71
  6. Step 6: Final answer
    x = 47,207.66

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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.