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Finding the Fourth Proportional to 61,507.72, 84,884.31 and 37,639.03

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Solution

The fourth proportional to 61,507.72, 84,884.31 and 37,639.03 is: 51,944.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,507.72 : 84,884.31 = 37,639.03 : x
  2. Step 2: Convert to fraction form
    61,507.72/84,884.31 = 37,639.03/x
  3. Step 3: Cross multiply
    61,507.72x = 84,884.31 × 37,639.03
  4. Step 4: Simplify right side
    61,507.72x = 3,194,963,090.62
  5. Step 5: Solve for x
    x = 3,194,963,090.62/61,507.72
  6. Step 6: Final answer
    x = 51,944.10

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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.