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Finding the Fourth Proportional to 18,335.62, 27,477.51 and 9,108.10

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Solution

The fourth proportional to 18,335.62, 27,477.51 and 9,108.10 is: 13,649.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,335.62 : 27,477.51 = 9,108.10 : x
  2. Step 2: Convert to fraction form
    18,335.62/27,477.51 = 9,108.10/x
  3. Step 3: Cross multiply
    18,335.62x = 27,477.51 × 9,108.10
  4. Step 4: Simplify right side
    18,335.62x = 250,267,908.83
  5. Step 5: Solve for x
    x = 250,267,908.83/18,335.62
  6. Step 6: Final answer
    x = 13,649.27

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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.