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Finding the Fourth Proportional to 17,503.64, 26,266.39 and 7,115.39

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Solution

The fourth proportional to 17,503.64, 26,266.39 and 7,115.39 is: 10,677.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,503.64 : 26,266.39 = 7,115.39 : x
  2. Step 2: Convert to fraction form
    17,503.64/26,266.39 = 7,115.39/x
  3. Step 3: Cross multiply
    17,503.64x = 26,266.39 × 7,115.39
  4. Step 4: Simplify right side
    17,503.64x = 186,895,459.62
  5. Step 5: Solve for x
    x = 186,895,459.62/17,503.64
  6. Step 6: Final answer
    x = 10,677.52

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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.