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Finding the Fourth Proportional to 5,043.68, 6,959.23 and 2,947.40

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Solution

The fourth proportional to 5,043.68, 6,959.23 and 2,947.40 is: 4,066.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,043.68 : 6,959.23 = 2,947.40 : x
  2. Step 2: Convert to fraction form
    5,043.68/6,959.23 = 2,947.40/x
  3. Step 3: Cross multiply
    5,043.68x = 6,959.23 × 2,947.40
  4. Step 4: Simplify right side
    5,043.68x = 20,511,634.50
  5. Step 5: Solve for x
    x = 20,511,634.50/5,043.68
  6. Step 6: Final answer
    x = 4,066.80

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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.