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Finding the Fourth Proportional to 5,287.83, 7,282.22 and 4,395.48

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Solution

The fourth proportional to 5,287.83, 7,282.22 and 4,395.48 is: 6,053.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,287.83 : 7,282.22 = 4,395.48 : x
  2. Step 2: Convert to fraction form
    5,287.83/7,282.22 = 4,395.48/x
  3. Step 3: Cross multiply
    5,287.83x = 7,282.22 × 4,395.48
  4. Step 4: Simplify right side
    5,287.83x = 32,008,830.39
  5. Step 5: Solve for x
    x = 32,008,830.39/5,287.83
  6. Step 6: Final answer
    x = 6,053.30

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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.