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Finding the Fourth Proportional to 9,363.36, 12,911.76 and 8,041.44

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Solution

The fourth proportional to 9,363.36, 12,911.76 and 8,041.44 is: 11,088.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,363.36 : 12,911.76 = 8,041.44 : x
  2. Step 2: Convert to fraction form
    9,363.36/12,911.76 = 8,041.44/x
  3. Step 3: Cross multiply
    9,363.36x = 12,911.76 × 8,041.44
  4. Step 4: Simplify right side
    9,363.36x = 103,829,143.33
  5. Step 5: Solve for x
    x = 103,829,143.33/9,363.36
  6. Step 6: Final answer
    x = 11,088.88

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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.