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Finding the Fourth Proportional to 84,710.82, 127,070.79 and 22,379.62

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Solution

The fourth proportional to 84,710.82, 127,070.79 and 22,379.62 is: 33,570.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,710.82 : 127,070.79 = 22,379.62 : x
  2. Step 2: Convert to fraction form
    84,710.82/127,070.79 = 22,379.62/x
  3. Step 3: Cross multiply
    84,710.82x = 127,070.79 × 22,379.62
  4. Step 4: Simplify right side
    84,710.82x = 2,843,795,993.30
  5. Step 5: Solve for x
    x = 2,843,795,993.30/84,710.82
  6. Step 6: Final answer
    x = 33,570.63

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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.