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Finding the Fourth Proportional to 18,844.01, 28,264.05 and 9,480.20

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Solution

The fourth proportional to 18,844.01, 28,264.05 and 9,480.20 is: 14,219.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,844.01 : 28,264.05 = 9,480.20 : x
  2. Step 2: Convert to fraction form
    18,844.01/28,264.05 = 9,480.20/x
  3. Step 3: Cross multiply
    18,844.01x = 28,264.05 × 9,480.20
  4. Step 4: Simplify right side
    18,844.01x = 267,948,705.49
  5. Step 5: Solve for x
    x = 267,948,705.49/18,844.01
  6. Step 6: Final answer
    x = 14,219.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.