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Finding the Fourth Proportional to 61,141.44, 91,712.32 and 31,553.92

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Solution

The fourth proportional to 61,141.44, 91,712.32 and 31,553.92 is: 47,330.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,141.44 : 91,712.32 = 31,553.92 : x
  2. Step 2: Convert to fraction form
    61,141.44/91,712.32 = 31,553.92/x
  3. Step 3: Cross multiply
    61,141.44x = 91,712.32 × 31,553.92
  4. Step 4: Simplify right side
    61,141.44x = 2,893,883,208.29
  5. Step 5: Solve for x
    x = 2,893,883,208.29/61,141.44
  6. Step 6: Final answer
    x = 47,330.96

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1.5x scale

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.