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Finding the Fourth Proportional to 9,910.71, 14,836.91 and 5,522.13

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Solution

The fourth proportional to 9,910.71, 14,836.91 and 5,522.13 is: 8,266.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,910.71 : 14,836.91 = 5,522.13 : x
  2. Step 2: Convert to fraction form
    9,910.71/14,836.91 = 5,522.13/x
  3. Step 3: Cross multiply
    9,910.71x = 14,836.91 × 5,522.13
  4. Step 4: Simplify right side
    9,910.71x = 81,931,318.21
  5. Step 5: Solve for x
    x = 81,931,318.21/9,910.71
  6. Step 6: Final answer
    x = 8,266.95

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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.