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Finding the Fourth Proportional to 61,043.72, 84,241.62 and 37,171.40

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Solution

The fourth proportional to 61,043.72, 84,241.62 and 37,171.40 is: 51,297.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,043.72 : 84,241.62 = 37,171.40 : x
  2. Step 2: Convert to fraction form
    61,043.72/84,241.62 = 37,171.40/x
  3. Step 3: Cross multiply
    61,043.72x = 84,241.62 × 37,171.40
  4. Step 4: Simplify right side
    61,043.72x = 3,131,378,953.67
  5. Step 5: Solve for x
    x = 3,131,378,953.67/61,043.72
  6. Step 6: Final answer
    x = 51,297.32

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1.5x scale

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.