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Finding the Fourth Proportional to 2,175.44, 3,262.68 and 714.20

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Solution

The fourth proportional to 2,175.44, 3,262.68 and 714.20 is: 1,071.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,175.44 : 3,262.68 = 714.20 : x
  2. Step 2: Convert to fraction form
    2,175.44/3,262.68 = 714.20/x
  3. Step 3: Cross multiply
    2,175.44x = 3,262.68 × 714.20
  4. Step 4: Simplify right side
    2,175.44x = 2,330,206.06
  5. Step 5: Solve for x
    x = 2,330,206.06/2,175.44
  6. Step 6: Final answer
    x = 1,071.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.