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Finding the Fourth Proportional to 2,959.68, 4,084.56 and 1,717.68

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Solution

The fourth proportional to 2,959.68, 4,084.56 and 1,717.68 is: 2,370.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,959.68 : 4,084.56 = 1,717.68 : x
  2. Step 2: Convert to fraction form
    2,959.68/4,084.56 = 1,717.68/x
  3. Step 3: Cross multiply
    2,959.68x = 4,084.56 × 1,717.68
  4. Step 4: Simplify right side
    2,959.68x = 7,015,967.02
  5. Step 5: Solve for x
    x = 7,015,967.02/2,959.68
  6. Step 6: Final answer
    x = 2,370.52

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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.