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Finding the Fourth Proportional to 26,424, 39,636 and 10,008

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Solution

The fourth proportional to 26,424, 39,636 and 10,008 is: 15,012

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,424 : 39,636 = 10,008 : x
  2. Step 2: Convert to fraction form
    26,424/39,636 = 10,008/x
  3. Step 3: Cross multiply
    26,424x = 39,636 × 10,008
  4. Step 4: Simplify right side
    26,424x = 396,677,088
  5. Step 5: Solve for x
    x = 396,677,088/26,424
  6. Step 6: Final answer
    x = 15,012

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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.