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Finding the Fourth Proportional to 18,693.60, 25,797.48 and 10,195.77

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Solution

The fourth proportional to 18,693.60, 25,797.48 and 10,195.77 is: 14,070.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,693.60 : 25,797.48 = 10,195.77 : x
  2. Step 2: Convert to fraction form
    18,693.60/25,797.48 = 10,195.77/x
  3. Step 3: Cross multiply
    18,693.60x = 25,797.48 × 10,195.77
  4. Step 4: Simplify right side
    18,693.60x = 263,025,172.66
  5. Step 5: Solve for x
    x = 263,025,172.66/18,693.60
  6. Step 6: Final answer
    x = 14,070.33

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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.