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Finding the Fourth Proportional to 18,713.71, 25,823.82 and 10,214.15

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Solution

The fourth proportional to 18,713.71, 25,823.82 and 10,214.15 is: 14,094.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,713.71 : 25,823.82 = 10,214.15 : x
  2. Step 2: Convert to fraction form
    18,713.71/25,823.82 = 10,214.15/x
  3. Step 3: Cross multiply
    18,713.71x = 25,823.82 × 10,214.15
  4. Step 4: Simplify right side
    18,713.71x = 263,768,241.93
  5. Step 5: Solve for x
    x = 263,768,241.93/18,713.71
  6. Step 6: Final answer
    x = 14,094.92

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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.