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Finding the Fourth Proportional to 89,215.70, 133,733.55 and 33,019.70

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Solution

The fourth proportional to 89,215.70, 133,733.55 and 33,019.70 is: 49,496.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,215.70 : 133,733.55 = 33,019.70 : x
  2. Step 2: Convert to fraction form
    89,215.70/133,733.55 = 33,019.70/x
  3. Step 3: Cross multiply
    89,215.70x = 133,733.55 × 33,019.70
  4. Step 4: Simplify right side
    89,215.70x = 4,415,841,700.94
  5. Step 5: Solve for x
    x = 4,415,841,700.94/89,215.70
  6. Step 6: Final answer
    x = 49,496.24

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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.