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Finding the Fourth Proportional to 19,267.88, 28,901.82 and 5,416.88

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Solution

The fourth proportional to 19,267.88, 28,901.82 and 5,416.88 is: 8,125.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,267.88 : 28,901.82 = 5,416.88 : x
  2. Step 2: Convert to fraction form
    19,267.88/28,901.82 = 5,416.88/x
  3. Step 3: Cross multiply
    19,267.88x = 28,901.82 × 5,416.88
  4. Step 4: Simplify right side
    19,267.88x = 156,557,546.21
  5. Step 5: Solve for x
    x = 156,557,546.21/19,267.88
  6. Step 6: Final answer
    x = 8,125.31

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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.