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Finding the Fourth Proportional to 18,711.93, 25,822.24 and 10,214.11

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Solution

The fourth proportional to 18,711.93, 25,822.24 and 10,214.11 is: 14,095.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,711.93 : 25,822.24 = 10,214.11 : x
  2. Step 2: Convert to fraction form
    18,711.93/25,822.24 = 10,214.11/x
  3. Step 3: Cross multiply
    18,711.93x = 25,822.24 × 10,214.11
  4. Step 4: Simplify right side
    18,711.93x = 263,751,206.55
  5. Step 5: Solve for x
    x = 263,751,206.55/18,711.93
  6. Step 6: Final answer
    x = 14,095.35

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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.