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Finding the Fourth Proportional to 18,671.04, 25,766.00 and 10,287.54

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Solution

The fourth proportional to 18,671.04, 25,766.00 and 10,287.54 is: 14,196.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,671.04 : 25,766.00 = 10,287.54 : x
  2. Step 2: Convert to fraction form
    18,671.04/25,766.00 = 10,287.54/x
  3. Step 3: Cross multiply
    18,671.04x = 25,766.00 × 10,287.54
  4. Step 4: Simplify right side
    18,671.04x = 265,068,742.78
  5. Step 5: Solve for x
    x = 265,068,742.78/18,671.04
  6. Step 6: Final answer
    x = 14,196.79

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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.