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Finding the Fourth Proportional to 18,326.54, 27,477.66 and 9,447.32

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Solution

The fourth proportional to 18,326.54, 27,477.66 and 9,447.32 is: 14,164.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,326.54 : 27,477.66 = 9,447.32 : x
  2. Step 2: Convert to fraction form
    18,326.54/27,477.66 = 9,447.32/x
  3. Step 3: Cross multiply
    18,326.54x = 27,477.66 × 9,447.32
  4. Step 4: Simplify right side
    18,326.54x = 259,590,246.87
  5. Step 5: Solve for x
    x = 259,590,246.87/18,326.54
  6. Step 6: Final answer
    x = 14,164.72

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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.