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Finding the Fourth Proportional to 22,661.16, 33,991.74 and 7,080.12

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Solution

The fourth proportional to 22,661.16, 33,991.74 and 7,080.12 is: 10,620.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,661.16 : 33,991.74 = 7,080.12 : x
  2. Step 2: Convert to fraction form
    22,661.16/33,991.74 = 7,080.12/x
  3. Step 3: Cross multiply
    22,661.16x = 33,991.74 × 7,080.12
  4. Step 4: Simplify right side
    22,661.16x = 240,665,598.21
  5. Step 5: Solve for x
    x = 240,665,598.21/22,661.16
  6. Step 6: Final answer
    x = 10,620.18

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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.