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Finding the Fourth Proportional to 18,641.54, 25,723.88 and 10,682.08

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Solution

The fourth proportional to 18,641.54, 25,723.88 and 10,682.08 is: 14,740.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,641.54 : 25,723.88 = 10,682.08 : x
  2. Step 2: Convert to fraction form
    18,641.54/25,723.88 = 10,682.08/x
  3. Step 3: Cross multiply
    18,641.54x = 25,723.88 × 10,682.08
  4. Step 4: Simplify right side
    18,641.54x = 274,784,466.41
  5. Step 5: Solve for x
    x = 274,784,466.41/18,641.54
  6. Step 6: Final answer
    x = 14,740.44

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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.