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Finding the Fourth Proportional to 61,285.63, 84,564.96 and 34,422.99

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Solution

The fourth proportional to 61,285.63, 84,564.96 and 34,422.99 is: 47,498.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,285.63 : 84,564.96 = 34,422.99 : x
  2. Step 2: Convert to fraction form
    61,285.63/84,564.96 = 34,422.99/x
  3. Step 3: Cross multiply
    61,285.63x = 84,564.96 × 34,422.99
  4. Step 4: Simplify right side
    61,285.63x = 2,910,978,995.53
  5. Step 5: Solve for x
    x = 2,910,978,995.53/61,285.63
  6. Step 6: Final answer
    x = 47,498.56

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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.