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Finding the Fourth Proportional to 61,318.44, 84,621.78 and 37,455.84

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Solution

The fourth proportional to 61,318.44, 84,621.78 and 37,455.84 is: 51,690.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,318.44 : 84,621.78 = 37,455.84 : x
  2. Step 2: Convert to fraction form
    61,318.44/84,621.78 = 37,455.84/x
  3. Step 3: Cross multiply
    61,318.44x = 84,621.78 × 37,455.84
  4. Step 4: Simplify right side
    61,318.44x = 3,169,579,852.20
  5. Step 5: Solve for x
    x = 3,169,579,852.20/61,318.44
  6. Step 6: Final answer
    x = 51,690.48

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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.