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Finding the Fourth Proportional to 17,644.61, 26,458.92 and 12,693.48

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Solution

The fourth proportional to 17,644.61, 26,458.92 and 12,693.48 is: 19,034.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,644.61 : 26,458.92 = 12,693.48 : x
  2. Step 2: Convert to fraction form
    17,644.61/26,458.92 = 12,693.48/x
  3. Step 3: Cross multiply
    17,644.61x = 26,458.92 × 12,693.48
  4. Step 4: Simplify right side
    17,644.61x = 335,855,771.84
  5. Step 5: Solve for x
    x = 335,855,771.84/17,644.61
  6. Step 6: Final answer
    x = 19,034.47

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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.