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Finding the Fourth Proportional to 30,472.44, 42,053.10 and 17,043.66

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Solution

The fourth proportional to 30,472.44, 42,053.10 and 17,043.66 is: 23,520.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,472.44 : 42,053.10 = 17,043.66 : x
  2. Step 2: Convert to fraction form
    30,472.44/42,053.10 = 17,043.66/x
  3. Step 3: Cross multiply
    30,472.44x = 42,053.10 × 17,043.66
  4. Step 4: Simplify right side
    30,472.44x = 716,738,738.35
  5. Step 5: Solve for x
    x = 716,738,738.35/30,472.44
  6. Step 6: Final answer
    x = 23,520.88

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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.