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Finding the Fourth Proportional to 15,053.91, 20,775.18 and 8,340.27

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Solution

The fourth proportional to 15,053.91, 20,775.18 and 8,340.27 is: 11,510.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,053.91 : 20,775.18 = 8,340.27 : x
  2. Step 2: Convert to fraction form
    15,053.91/20,775.18 = 8,340.27/x
  3. Step 3: Cross multiply
    15,053.91x = 20,775.18 × 8,340.27
  4. Step 4: Simplify right side
    15,053.91x = 173,270,610.50
  5. Step 5: Solve for x
    x = 173,270,610.50/15,053.91
  6. Step 6: Final answer
    x = 11,510.01

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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.