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Finding the Fourth Proportional to 28,649.97, 42,964.02 and 11,117.52

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Solution

The fourth proportional to 28,649.97, 42,964.02 and 11,117.52 is: 16,672.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,649.97 : 42,964.02 = 11,117.52 : x
  2. Step 2: Convert to fraction form
    28,649.97/42,964.02 = 11,117.52/x
  3. Step 3: Cross multiply
    28,649.97x = 42,964.02 × 11,117.52
  4. Step 4: Simplify right side
    28,649.97x = 477,653,351.63
  5. Step 5: Solve for x
    x = 477,653,351.63/28,649.97
  6. Step 6: Final answer
    x = 16,672.04

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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.