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Finding the Fourth Proportional to 11,453.84, 17,085.68 and 11,069.92

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Solution

The fourth proportional to 11,453.84, 17,085.68 and 11,069.92 is: 16,512.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,453.84 : 17,085.68 = 11,069.92 : x
  2. Step 2: Convert to fraction form
    11,453.84/17,085.68 = 11,069.92/x
  3. Step 3: Cross multiply
    11,453.84x = 17,085.68 × 11,069.92
  4. Step 4: Simplify right side
    11,453.84x = 189,137,110.75
  5. Step 5: Solve for x
    x = 189,137,110.75/11,453.84
  6. Step 6: Final answer
    x = 16,512.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.