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Finding the Fourth Proportional to 12,503.70, 17,253 and 8,025.21

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Solution

The fourth proportional to 12,503.70, 17,253 and 8,025.21 is: 11,073.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,503.70 : 17,253 = 8,025.21 : x
  2. Step 2: Convert to fraction form
    12,503.70/17,253 = 8,025.21/x
  3. Step 3: Cross multiply
    12,503.70x = 17,253 × 8,025.21
  4. Step 4: Simplify right side
    12,503.70x = 138,458,948.13
  5. Step 5: Solve for x
    x = 138,458,948.13/12,503.70
  6. Step 6: Final answer
    x = 11,073.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.