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Finding the Fourth Proportional to 61,911.68, 85,438.44 and 33,617.36

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Solution

The fourth proportional to 61,911.68, 85,438.44 and 33,617.36 is: 46,392.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,911.68 : 85,438.44 = 33,617.36 : x
  2. Step 2: Convert to fraction form
    61,911.68/85,438.44 = 33,617.36/x
  3. Step 3: Cross multiply
    61,911.68x = 85,438.44 × 33,617.36
  4. Step 4: Simplify right side
    61,911.68x = 2,872,214,795.32
  5. Step 5: Solve for x
    x = 2,872,214,795.32/61,911.68
  6. Step 6: Final answer
    x = 46,392.13

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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.