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Finding the Fourth Proportional to 3,069.95, 4,236.75 and 1,743.75

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Solution

The fourth proportional to 3,069.95, 4,236.75 and 1,743.75 is: 2,406.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,069.95 : 4,236.75 = 1,743.75 : x
  2. Step 2: Convert to fraction form
    3,069.95/4,236.75 = 1,743.75/x
  3. Step 3: Cross multiply
    3,069.95x = 4,236.75 × 1,743.75
  4. Step 4: Simplify right side
    3,069.95x = 7,387,828.45
  5. Step 5: Solve for x
    x = 7,387,828.45/3,069.95
  6. Step 6: Final answer
    x = 2,406.50

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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.