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Finding the Fourth Proportional to 9,359.11, 12,918.15 and 5,820.22

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Solution

The fourth proportional to 9,359.11, 12,918.15 and 5,820.22 is: 8,033.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,359.11 : 12,918.15 = 5,820.22 : x
  2. Step 2: Convert to fraction form
    9,359.11/12,918.15 = 5,820.22/x
  3. Step 3: Cross multiply
    9,359.11x = 12,918.15 × 5,820.22
  4. Step 4: Simplify right side
    9,359.11x = 75,186,474.99
  5. Step 5: Solve for x
    x = 75,186,474.99/9,359.11
  6. Step 6: Final answer
    x = 8,033.51

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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.