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Finding the Fourth Proportional to 3,561.12, 4,914.18 and 2,069.10

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Solution

The fourth proportional to 3,561.12, 4,914.18 and 2,069.10 is: 2,855.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,561.12 : 4,914.18 = 2,069.10 : x
  2. Step 2: Convert to fraction form
    3,561.12/4,914.18 = 2,069.10/x
  3. Step 3: Cross multiply
    3,561.12x = 4,914.18 × 2,069.10
  4. Step 4: Simplify right side
    3,561.12x = 10,167,929.84
  5. Step 5: Solve for x
    x = 10,167,929.84/3,561.12
  6. Step 6: Final answer
    x = 2,855.26

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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.