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Finding the Fourth Proportional to 18,411.30, 27,616.92 and 4,560.30

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Solution

The fourth proportional to 18,411.30, 27,616.92 and 4,560.30 is: 6,840.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,411.30 : 27,616.92 = 4,560.30 : x
  2. Step 2: Convert to fraction form
    18,411.30/27,616.92 = 4,560.30/x
  3. Step 3: Cross multiply
    18,411.30x = 27,616.92 × 4,560.30
  4. Step 4: Simplify right side
    18,411.30x = 125,941,440.28
  5. Step 5: Solve for x
    x = 125,941,440.28/18,411.30
  6. Step 6: Final answer
    x = 6,840.44

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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.