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Finding the Fourth Proportional to 17,648.51, 26,466.89 and 7,115.81

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Solution

The fourth proportional to 17,648.51, 26,466.89 and 7,115.81 is: 10,671.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,648.51 : 26,466.89 = 7,115.81 : x
  2. Step 2: Convert to fraction form
    17,648.51/26,466.89 = 7,115.81/x
  3. Step 3: Cross multiply
    17,648.51x = 26,466.89 × 7,115.81
  4. Step 4: Simplify right side
    17,648.51x = 188,333,192.62
  5. Step 5: Solve for x
    x = 188,333,192.62/17,648.51
  6. Step 6: Final answer
    x = 10,671.34

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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.