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Finding the Fourth Proportional to 61,302.96, 84,601.44 and 37,422.72

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Solution

The fourth proportional to 61,302.96, 84,601.44 and 37,422.72 is: 51,645.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,302.96 : 84,601.44 = 37,422.72 : x
  2. Step 2: Convert to fraction form
    61,302.96/84,601.44 = 37,422.72/x
  3. Step 3: Cross multiply
    61,302.96x = 84,601.44 × 37,422.72
  4. Step 4: Simplify right side
    61,302.96x = 3,166,016,000.72
  5. Step 5: Solve for x
    x = 3,166,016,000.72/61,302.96
  6. Step 6: Final answer
    x = 51,645.40

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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.