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Finding the Fourth Proportional to 2,707.68, 3,732.88 and 1,712.46

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Solution

The fourth proportional to 2,707.68, 3,732.88 and 1,712.46 is: 2,360.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,707.68 : 3,732.88 = 1,712.46 : x
  2. Step 2: Convert to fraction form
    2,707.68/3,732.88 = 1,712.46/x
  3. Step 3: Cross multiply
    2,707.68x = 3,732.88 × 1,712.46
  4. Step 4: Simplify right side
    2,707.68x = 6,392,407.68
  5. Step 5: Solve for x
    x = 6,392,407.68/2,707.68
  6. Step 6: Final answer
    x = 2,360.84

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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.