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Finding the Fourth Proportional to 55,951.56, 77,213.13 and 30,801.06

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Solution

The fourth proportional to 55,951.56, 77,213.13 and 30,801.06 is: 42,505.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,951.56 : 77,213.13 = 30,801.06 : x
  2. Step 2: Convert to fraction form
    55,951.56/77,213.13 = 30,801.06/x
  3. Step 3: Cross multiply
    55,951.56x = 77,213.13 × 30,801.06
  4. Step 4: Simplify right side
    55,951.56x = 2,378,246,249.92
  5. Step 5: Solve for x
    x = 2,378,246,249.92/55,951.56
  6. Step 6: Final answer
    x = 42,505.45

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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.