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Finding the Fourth Proportional to 2,858.76, 4,268.16 and 2,531.52

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Solution

The fourth proportional to 2,858.76, 4,268.16 and 2,531.52 is: 3,779.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,858.76 : 4,268.16 = 2,531.52 : x
  2. Step 2: Convert to fraction form
    2,858.76/4,268.16 = 2,531.52/x
  3. Step 3: Cross multiply
    2,858.76x = 4,268.16 × 2,531.52
  4. Step 4: Simplify right side
    2,858.76x = 10,804,932.40
  5. Step 5: Solve for x
    x = 10,804,932.40/2,858.76
  6. Step 6: Final answer
    x = 3,779.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.