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Finding the Fourth Proportional to 4,969.15, 6,857.61 and 2,845.01

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Solution

The fourth proportional to 4,969.15, 6,857.61 and 2,845.01 is: 3,926.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,969.15 : 6,857.61 = 2,845.01 : x
  2. Step 2: Convert to fraction form
    4,969.15/6,857.61 = 2,845.01/x
  3. Step 3: Cross multiply
    4,969.15x = 6,857.61 × 2,845.01
  4. Step 4: Simplify right side
    4,969.15x = 19,509,969.03
  5. Step 5: Solve for x
    x = 19,509,969.03/4,969.15
  6. Step 6: Final answer
    x = 3,926.22

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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.