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Finding the Fourth Proportional to 30,597.92, 42,225.92 and 17,170.56

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Solution

The fourth proportional to 30,597.92, 42,225.92 and 17,170.56 is: 23,695.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,597.92 : 42,225.92 = 17,170.56 : x
  2. Step 2: Convert to fraction form
    30,597.92/42,225.92 = 17,170.56/x
  3. Step 3: Cross multiply
    30,597.92x = 42,225.92 × 17,170.56
  4. Step 4: Simplify right side
    30,597.92x = 725,042,692.92
  5. Step 5: Solve for x
    x = 725,042,692.92/30,597.92
  6. Step 6: Final answer
    x = 23,695.82

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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.