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Finding the Fourth Proportional to 3,375.51, 5,062.95 and 910.59

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Solution

The fourth proportional to 3,375.51, 5,062.95 and 910.59 is: 1,365.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,375.51 : 5,062.95 = 910.59 : x
  2. Step 2: Convert to fraction form
    3,375.51/5,062.95 = 910.59/x
  3. Step 3: Cross multiply
    3,375.51x = 5,062.95 × 910.59
  4. Step 4: Simplify right side
    3,375.51x = 4,610,271.64
  5. Step 5: Solve for x
    x = 4,610,271.64/3,375.51
  6. Step 6: Final answer
    x = 1,365.80

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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.