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Finding the Fourth Proportional to 55,626.72, 76,752.80 and 32,972.80

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Solution

The fourth proportional to 55,626.72, 76,752.80 and 32,972.80 is: 45,495.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,626.72 : 76,752.80 = 32,972.80 : x
  2. Step 2: Convert to fraction form
    55,626.72/76,752.80 = 32,972.80/x
  3. Step 3: Cross multiply
    55,626.72x = 76,752.80 × 32,972.80
  4. Step 4: Simplify right side
    55,626.72x = 2,530,754,723.84
  5. Step 5: Solve for x
    x = 2,530,754,723.84/55,626.72
  6. Step 6: Final answer
    x = 45,495.31

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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.