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Finding the Fourth Proportional to 73,085.66, 109,562.87 and 28,744.23

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Solution

The fourth proportional to 73,085.66, 109,562.87 and 28,744.23 is: 43,090.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,085.66 : 109,562.87 = 28,744.23 : x
  2. Step 2: Convert to fraction form
    73,085.66/109,562.87 = 28,744.23/x
  3. Step 3: Cross multiply
    73,085.66x = 109,562.87 × 28,744.23
  4. Step 4: Simplify right side
    73,085.66x = 3,149,300,191.02
  5. Step 5: Solve for x
    x = 3,149,300,191.02/73,085.66
  6. Step 6: Final answer
    x = 43,090.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.