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Finding the Fourth Proportional to 17,661.88, 26,503.74 and 10,269.80

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Solution

The fourth proportional to 17,661.88, 26,503.74 and 10,269.80 is: 15,411.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,661.88 : 26,503.74 = 10,269.80 : x
  2. Step 2: Convert to fraction form
    17,661.88/26,503.74 = 10,269.80/x
  3. Step 3: Cross multiply
    17,661.88x = 26,503.74 × 10,269.80
  4. Step 4: Simplify right side
    17,661.88x = 272,188,109.05
  5. Step 5: Solve for x
    x = 272,188,109.05/17,661.88
  6. Step 6: Final answer
    x = 15,411.05

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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.