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Finding the Fourth Proportional to 5,272.62, 7,275.95 and 2,914.31

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Solution

The fourth proportional to 5,272.62, 7,275.95 and 2,914.31 is: 4,021.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,272.62 : 7,275.95 = 2,914.31 : x
  2. Step 2: Convert to fraction form
    5,272.62/7,275.95 = 2,914.31/x
  3. Step 3: Cross multiply
    5,272.62x = 7,275.95 × 2,914.31
  4. Step 4: Simplify right side
    5,272.62x = 21,204,322.89
  5. Step 5: Solve for x
    x = 21,204,322.89/5,272.62
  6. Step 6: Final answer
    x = 4,021.59

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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.