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Finding the Fourth Proportional to 2,368.67, 3,268.13 and 2,275.25

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Solution

The fourth proportional to 2,368.67, 3,268.13 and 2,275.25 is: 3,139.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,368.67 : 3,268.13 = 2,275.25 : x
  2. Step 2: Convert to fraction form
    2,368.67/3,268.13 = 2,275.25/x
  3. Step 3: Cross multiply
    2,368.67x = 3,268.13 × 2,275.25
  4. Step 4: Simplify right side
    2,368.67x = 7,435,785.07
  5. Step 5: Solve for x
    x = 7,435,785.07/2,368.67
  6. Step 6: Final answer
    x = 3,139.23

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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.