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Finding the Fourth Proportional to 61,202.80, 91,731.30 and 25,664.05

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Solution

The fourth proportional to 61,202.80, 91,731.30 and 25,664.05 is: 38,465.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,202.80 : 91,731.30 = 25,664.05 : x
  2. Step 2: Convert to fraction form
    61,202.80/91,731.30 = 25,664.05/x
  3. Step 3: Cross multiply
    61,202.80x = 91,731.30 × 25,664.05
  4. Step 4: Simplify right side
    61,202.80x = 2,354,196,669.77
  5. Step 5: Solve for x
    x = 2,354,196,669.77/61,202.80
  6. Step 6: Final answer
    x = 38,465.51

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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.