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Finding the Fourth Proportional to 58,687.38, 80,987.31 and 33,190.38

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Solution

The fourth proportional to 58,687.38, 80,987.31 and 33,190.38 is: 45,802.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,687.38 : 80,987.31 = 33,190.38 : x
  2. Step 2: Convert to fraction form
    58,687.38/80,987.31 = 33,190.38/x
  3. Step 3: Cross multiply
    58,687.38x = 80,987.31 × 33,190.38
  4. Step 4: Simplify right side
    58,687.38x = 2,687,999,594.08
  5. Step 5: Solve for x
    x = 2,687,999,594.08/58,687.38
  6. Step 6: Final answer
    x = 45,802.00

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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.