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Finding the Fourth Proportional to 17,243.61, 25,852.29 and 8,918.31

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Solution

The fourth proportional to 17,243.61, 25,852.29 and 8,918.31 is: 13,370.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,243.61 : 25,852.29 = 8,918.31 : x
  2. Step 2: Convert to fraction form
    17,243.61/25,852.29 = 8,918.31/x
  3. Step 3: Cross multiply
    17,243.61x = 25,852.29 × 8,918.31
  4. Step 4: Simplify right side
    17,243.61x = 230,558,866.82
  5. Step 5: Solve for x
    x = 230,558,866.82/17,243.61
  6. Step 6: Final answer
    x = 13,370.69

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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.