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Finding the Fourth Proportional to 61,405.98, 84,741.03 and 34,548.54

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Solution

The fourth proportional to 61,405.98, 84,741.03 and 34,548.54 is: 47,677.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,405.98 : 84,741.03 = 34,548.54 : x
  2. Step 2: Convert to fraction form
    61,405.98/84,741.03 = 34,548.54/x
  3. Step 3: Cross multiply
    61,405.98x = 84,741.03 × 34,548.54
  4. Step 4: Simplify right side
    61,405.98x = 2,927,678,864.60
  5. Step 5: Solve for x
    x = 2,927,678,864.60/61,405.98
  6. Step 6: Final answer
    x = 47,677.42

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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.