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Finding the Fourth Proportional to 19,296.12, 28,946.07 and 9,910.38

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Solution

The fourth proportional to 19,296.12, 28,946.07 and 9,910.38 is: 14,866.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,296.12 : 28,946.07 = 9,910.38 : x
  2. Step 2: Convert to fraction form
    19,296.12/28,946.07 = 9,910.38/x
  3. Step 3: Cross multiply
    19,296.12x = 28,946.07 × 9,910.38
  4. Step 4: Simplify right side
    19,296.12x = 286,866,553.21
  5. Step 5: Solve for x
    x = 286,866,553.21/19,296.12
  6. Step 6: Final answer
    x = 14,866.54

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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.