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Finding the Fourth Proportional to 62,896.63, 86,798.98 and 34,218.08

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Solution

The fourth proportional to 62,896.63, 86,798.98 and 34,218.08 is: 47,221.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,896.63 : 86,798.98 = 34,218.08 : x
  2. Step 2: Convert to fraction form
    62,896.63/86,798.98 = 34,218.08/x
  3. Step 3: Cross multiply
    62,896.63x = 86,798.98 × 34,218.08
  4. Step 4: Simplify right side
    62,896.63x = 2,970,094,441.56
  5. Step 5: Solve for x
    x = 2,970,094,441.56/62,896.63
  6. Step 6: Final answer
    x = 47,221.84

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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.