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Finding the Fourth Proportional to 19,265.10, 28,897.03 and 8,164.65

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Solution

The fourth proportional to 19,265.10, 28,897.03 and 8,164.65 is: 12,246.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,265.10 : 28,897.03 = 8,164.65 : x
  2. Step 2: Convert to fraction form
    19,265.10/28,897.03 = 8,164.65/x
  3. Step 3: Cross multiply
    19,265.10x = 28,897.03 × 8,164.65
  4. Step 4: Simplify right side
    19,265.10x = 235,934,135.99
  5. Step 5: Solve for x
    x = 235,934,135.99/19,265.10
  6. Step 6: Final answer
    x = 12,246.71

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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.