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Finding the Fourth Proportional to 2,714.76, 3,746.77 and 1,720.13

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Solution

The fourth proportional to 2,714.76, 3,746.77 and 1,720.13 is: 2,374.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,714.76 : 3,746.77 = 1,720.13 : x
  2. Step 2: Convert to fraction form
    2,714.76/3,746.77 = 1,720.13/x
  3. Step 3: Cross multiply
    2,714.76x = 3,746.77 × 1,720.13
  4. Step 4: Simplify right side
    2,714.76x = 6,444,935.97
  5. Step 5: Solve for x
    x = 6,444,935.97/2,714.76
  6. Step 6: Final answer
    x = 2,374.04

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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.