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Finding the Fourth Proportional to 13,797.12, 20,673.92 and 8,595.20

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Solution

The fourth proportional to 13,797.12, 20,673.92 and 8,595.20 is: 12,879.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,797.12 : 20,673.92 = 8,595.20 : x
  2. Step 2: Convert to fraction form
    13,797.12/20,673.92 = 8,595.20/x
  3. Step 3: Cross multiply
    13,797.12x = 20,673.92 × 8,595.20
  4. Step 4: Simplify right side
    13,797.12x = 177,696,477.18
  5. Step 5: Solve for x
    x = 177,696,477.18/13,797.12
  6. Step 6: Final answer
    x = 12,879.24

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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.