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Finding the Fourth Proportional to 22,379.84, 30,873.80 and 17,909.88

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Solution

The fourth proportional to 22,379.84, 30,873.80 and 17,909.88 is: 24,707.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,379.84 : 30,873.80 = 17,909.88 : x
  2. Step 2: Convert to fraction form
    22,379.84/30,873.80 = 17,909.88/x
  3. Step 3: Cross multiply
    22,379.84x = 30,873.80 × 17,909.88
  4. Step 4: Simplify right side
    22,379.84x = 552,946,053.14
  5. Step 5: Solve for x
    x = 552,946,053.14/22,379.84
  6. Step 6: Final answer
    x = 24,707.33

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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.