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Finding the Fourth Proportional to 11,143.98, 16,715.98 and 4,568.98

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Solution

The fourth proportional to 11,143.98, 16,715.98 and 4,568.98 is: 6,853.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,143.98 : 16,715.98 = 4,568.98 : x
  2. Step 2: Convert to fraction form
    11,143.98/16,715.98 = 4,568.98/x
  3. Step 3: Cross multiply
    11,143.98x = 16,715.98 × 4,568.98
  4. Step 4: Simplify right side
    11,143.98x = 76,374,978.30
  5. Step 5: Solve for x
    x = 76,374,978.30/11,143.98
  6. Step 6: Final answer
    x = 6,853.47

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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.