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Finding the Fourth Proportional to 8,867.38, 13,284.44 and 7,954.50

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Solution

The fourth proportional to 8,867.38, 13,284.44 and 7,954.50 is: 11,916.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,867.38 : 13,284.44 = 7,954.50 : x
  2. Step 2: Convert to fraction form
    8,867.38/13,284.44 = 7,954.50/x
  3. Step 3: Cross multiply
    8,867.38x = 13,284.44 × 7,954.50
  4. Step 4: Simplify right side
    8,867.38x = 105,671,077.98
  5. Step 5: Solve for x
    x = 105,671,077.98/8,867.38
  6. Step 6: Final answer
    x = 11,916.83

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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.