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Finding the Fourth Proportional to 61,273.83, 91,864.13 and 31,672.79

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Solution

The fourth proportional to 61,273.83, 91,864.13 and 31,672.79 is: 47,485.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,273.83 : 91,864.13 = 31,672.79 : x
  2. Step 2: Convert to fraction form
    61,273.83/91,864.13 = 31,672.79/x
  3. Step 3: Cross multiply
    61,273.83x = 91,864.13 × 31,672.79
  4. Step 4: Simplify right side
    61,273.83x = 2,909,593,024.83
  5. Step 5: Solve for x
    x = 2,909,593,024.83/61,273.83
  6. Step 6: Final answer
    x = 47,485.08

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.