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Finding the Fourth Proportional to 18,866.00, 28,262.01 and 10,951.91

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Solution

The fourth proportional to 18,866.00, 28,262.01 and 10,951.91 is: 16,406.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,866.00 : 28,262.01 = 10,951.91 : x
  2. Step 2: Convert to fraction form
    18,866.00/28,262.01 = 10,951.91/x
  3. Step 3: Cross multiply
    18,866.00x = 28,262.01 × 10,951.91
  4. Step 4: Simplify right side
    18,866.00x = 309,523,101.66
  5. Step 5: Solve for x
    x = 309,523,101.66/18,866.00
  6. Step 6: Final answer
    x = 16,406.40

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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.