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Finding the Fourth Proportional to 8,958.04, 12,363.66 and 8,564.44

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Solution

The fourth proportional to 8,958.04, 12,363.66 and 8,564.44 is: 11,820.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,958.04 : 12,363.66 = 8,564.44 : x
  2. Step 2: Convert to fraction form
    8,958.04/12,363.66 = 8,564.44/x
  3. Step 3: Cross multiply
    8,958.04x = 12,363.66 × 8,564.44
  4. Step 4: Simplify right side
    8,958.04x = 105,887,824.25
  5. Step 5: Solve for x
    x = 105,887,824.25/8,958.04
  6. Step 6: Final answer
    x = 11,820.42

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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.