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Finding the Fourth Proportional to 30,239.96, 45,322.88 and 22,821.17

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Solution

The fourth proportional to 30,239.96, 45,322.88 and 22,821.17 is: 34,203.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,239.96 : 45,322.88 = 22,821.17 : x
  2. Step 2: Convert to fraction form
    30,239.96/45,322.88 = 22,821.17/x
  3. Step 3: Cross multiply
    30,239.96x = 45,322.88 × 22,821.17
  4. Step 4: Simplify right side
    30,239.96x = 1,034,320,808.65
  5. Step 5: Solve for x
    x = 1,034,320,808.65/30,239.96
  6. Step 6: Final answer
    x = 34,203.78

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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.