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Finding the Fourth Proportional to 61,472.75, 84,840.89 and 37,607.31

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Solution

The fourth proportional to 61,472.75, 84,840.89 and 37,607.31 is: 51,903.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,472.75 : 84,840.89 = 37,607.31 : x
  2. Step 2: Convert to fraction form
    61,472.75/84,840.89 = 37,607.31/x
  3. Step 3: Cross multiply
    61,472.75x = 84,840.89 × 37,607.31
  4. Step 4: Simplify right side
    61,472.75x = 3,190,637,462.87
  5. Step 5: Solve for x
    x = 3,190,637,462.87/61,472.75
  6. Step 6: Final answer
    x = 51,903.29

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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.