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Finding the Fourth Proportional to 19,771.52, 27,284.70 and 10,819.10

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Solution

The fourth proportional to 19,771.52, 27,284.70 and 10,819.10 is: 14,930.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,771.52 : 27,284.70 = 10,819.10 : x
  2. Step 2: Convert to fraction form
    19,771.52/27,284.70 = 10,819.10/x
  3. Step 3: Cross multiply
    19,771.52x = 27,284.70 × 10,819.10
  4. Step 4: Simplify right side
    19,771.52x = 295,195,897.77
  5. Step 5: Solve for x
    x = 295,195,897.77/19,771.52
  6. Step 6: Final answer
    x = 14,930.36

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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.