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Finding the Fourth Proportional to 18,335.72, 27,499.17 and 8,465.51

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Solution

The fourth proportional to 18,335.72, 27,499.17 and 8,465.51 is: 12,696.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,335.72 : 27,499.17 = 8,465.51 : x
  2. Step 2: Convert to fraction form
    18,335.72/27,499.17 = 8,465.51/x
  3. Step 3: Cross multiply
    18,335.72x = 27,499.17 × 8,465.51
  4. Step 4: Simplify right side
    18,335.72x = 232,794,567.37
  5. Step 5: Solve for x
    x = 232,794,567.37/18,335.72
  6. Step 6: Final answer
    x = 12,696.24

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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.