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Finding the Fourth Proportional to 1,714.13, 2,365.52 and 957.88

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Solution

The fourth proportional to 1,714.13, 2,365.52 and 957.88 is: 1,321.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,714.13 : 2,365.52 = 957.88 : x
  2. Step 2: Convert to fraction form
    1,714.13/2,365.52 = 957.88/x
  3. Step 3: Cross multiply
    1,714.13x = 2,365.52 × 957.88
  4. Step 4: Simplify right side
    1,714.13x = 2,265,874.55
  5. Step 5: Solve for x
    x = 2,265,874.55/1,714.13
  6. Step 6: Final answer
    x = 1,321.88

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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.