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Finding the Fourth Proportional to 10,889.70, 16,370.55 and 9,464.10

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Solution

The fourth proportional to 10,889.70, 16,370.55 and 9,464.10 is: 14,227.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,889.70 : 16,370.55 = 9,464.10 : x
  2. Step 2: Convert to fraction form
    10,889.70/16,370.55 = 9,464.10/x
  3. Step 3: Cross multiply
    10,889.70x = 16,370.55 × 9,464.10
  4. Step 4: Simplify right side
    10,889.70x = 154,932,522.26
  5. Step 5: Solve for x
    x = 154,932,522.26/10,889.70
  6. Step 6: Final answer
    x = 14,227.44

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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.