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Finding the Fourth Proportional to 61,579.74, 84,980.43 and 33,285.36

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Solution

The fourth proportional to 61,579.74, 84,980.43 and 33,285.36 is: 45,934.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,579.74 : 84,980.43 = 33,285.36 : x
  2. Step 2: Convert to fraction form
    61,579.74/84,980.43 = 33,285.36/x
  3. Step 3: Cross multiply
    61,579.74x = 84,980.43 × 33,285.36
  4. Step 4: Simplify right side
    61,579.74x = 2,828,604,205.50
  5. Step 5: Solve for x
    x = 2,828,604,205.50/61,579.74
  6. Step 6: Final answer
    x = 45,934.01

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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.