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Finding the Fourth Proportional to 2,353.74, 3,530.62 and 710.28

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Solution

The fourth proportional to 2,353.74, 3,530.62 and 710.28 is: 1,065.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,353.74 : 3,530.62 = 710.28 : x
  2. Step 2: Convert to fraction form
    2,353.74/3,530.62 = 710.28/x
  3. Step 3: Cross multiply
    2,353.74x = 3,530.62 × 710.28
  4. Step 4: Simplify right side
    2,353.74x = 2,507,711.12
  5. Step 5: Solve for x
    x = 2,507,711.12/2,353.74
  6. Step 6: Final answer
    x = 1,065.42

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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.