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Finding the Fourth Proportional to 11,503.74, 17,255.88 and 3,712.26

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Solution

The fourth proportional to 11,503.74, 17,255.88 and 3,712.26 is: 5,568.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,503.74 : 17,255.88 = 3,712.26 : x
  2. Step 2: Convert to fraction form
    11,503.74/17,255.88 = 3,712.26/x
  3. Step 3: Cross multiply
    11,503.74x = 17,255.88 × 3,712.26
  4. Step 4: Simplify right side
    11,503.74x = 64,058,313.09
  5. Step 5: Solve for x
    x = 64,058,313.09/11,503.74
  6. Step 6: Final answer
    x = 5,568.48

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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.