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Finding the Fourth Proportional to 22,460.51, 30,770.85 and 21,619.32

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Solution

The fourth proportional to 22,460.51, 30,770.85 and 21,619.32 is: 29,618.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,460.51 : 30,770.85 = 21,619.32 : x
  2. Step 2: Convert to fraction form
    22,460.51/30,770.85 = 21,619.32/x
  3. Step 3: Cross multiply
    22,460.51x = 30,770.85 × 21,619.32
  4. Step 4: Simplify right side
    22,460.51x = 665,244,852.82
  5. Step 5: Solve for x
    x = 665,244,852.82/22,460.51
  6. Step 6: Final answer
    x = 29,618.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.