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Finding the Fourth Proportional to 17,486.61, 26,243.74 and 7,632.81

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Solution

The fourth proportional to 17,486.61, 26,243.74 and 7,632.81 is: 11,455.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,486.61 : 26,243.74 = 7,632.81 : x
  2. Step 2: Convert to fraction form
    17,486.61/26,243.74 = 7,632.81/x
  3. Step 3: Cross multiply
    17,486.61x = 26,243.74 × 7,632.81
  4. Step 4: Simplify right side
    17,486.61x = 200,313,481.11
  5. Step 5: Solve for x
    x = 200,313,481.11/17,486.61
  6. Step 6: Final answer
    x = 11,455.25

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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.