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Finding the Fourth Proportional to 8,954.52, 12,369.60 and 8,156.52

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Solution

The fourth proportional to 8,954.52, 12,369.60 and 8,156.52 is: 11,267.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,954.52 : 12,369.60 = 8,156.52 : x
  2. Step 2: Convert to fraction form
    8,954.52/12,369.60 = 8,156.52/x
  3. Step 3: Cross multiply
    8,954.52x = 12,369.60 × 8,156.52
  4. Step 4: Simplify right side
    8,954.52x = 100,892,889.79
  5. Step 5: Solve for x
    x = 100,892,889.79/8,954.52
  6. Step 6: Final answer
    x = 11,267.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.