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Finding the Fourth Proportional to 11,418.16, 17,126.98 and 5,262.16

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Solution

The fourth proportional to 11,418.16, 17,126.98 and 5,262.16 is: 7,893.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,418.16 : 17,126.98 = 5,262.16 : x
  2. Step 2: Convert to fraction form
    11,418.16/17,126.98 = 5,262.16/x
  3. Step 3: Cross multiply
    11,418.16x = 17,126.98 × 5,262.16
  4. Step 4: Simplify right side
    11,418.16x = 90,124,909.08
  5. Step 5: Solve for x
    x = 90,124,909.08/11,418.16
  6. Step 6: Final answer
    x = 7,893.12

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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.