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Finding the Fourth Proportional to 55,855.82, 77,069.40 and 33,202.82

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Solution

The fourth proportional to 55,855.82, 77,069.40 and 33,202.82 is: 45,812.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,855.82 : 77,069.40 = 33,202.82 : x
  2. Step 2: Convert to fraction form
    55,855.82/77,069.40 = 33,202.82/x
  3. Step 3: Cross multiply
    55,855.82x = 77,069.40 × 33,202.82
  4. Step 4: Simplify right side
    55,855.82x = 2,558,921,415.71
  5. Step 5: Solve for x
    x = 2,558,921,415.71/55,855.82
  6. Step 6: Final answer
    x = 45,812.98

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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.