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Finding the Fourth Proportional to 15,053.01, 20,772.90 and 8,246.97

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Solution

The fourth proportional to 15,053.01, 20,772.90 and 8,246.97 is: 11,380.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,053.01 : 20,772.90 = 8,246.97 : x
  2. Step 2: Convert to fraction form
    15,053.01/20,772.90 = 8,246.97/x
  3. Step 3: Cross multiply
    15,053.01x = 20,772.90 × 8,246.97
  4. Step 4: Simplify right side
    15,053.01x = 171,313,483.11
  5. Step 5: Solve for x
    x = 171,313,483.11/15,053.01
  6. Step 6: Final answer
    x = 11,380.68

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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.