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Finding the Fourth Proportional to 18,164.20, 25,068.90 and 17,818.60

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Solution

The fourth proportional to 18,164.20, 25,068.90 and 17,818.60 is: 24,591.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,164.20 : 25,068.90 = 17,818.60 : x
  2. Step 2: Convert to fraction form
    18,164.20/25,068.90 = 17,818.60/x
  3. Step 3: Cross multiply
    18,164.20x = 25,068.90 × 17,818.60
  4. Step 4: Simplify right side
    18,164.20x = 446,692,701.54
  5. Step 5: Solve for x
    x = 446,692,701.54/18,164.20
  6. Step 6: Final answer
    x = 24,591.93

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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.