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Finding the Fourth Proportional to 2,346.64, 3,520.12 and 703.12

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Solution

The fourth proportional to 2,346.64, 3,520.12 and 703.12 is: 1,054.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,346.64 : 3,520.12 = 703.12 : x
  2. Step 2: Convert to fraction form
    2,346.64/3,520.12 = 703.12/x
  3. Step 3: Cross multiply
    2,346.64x = 3,520.12 × 703.12
  4. Step 4: Simplify right side
    2,346.64x = 2,475,066.77
  5. Step 5: Solve for x
    x = 2,475,066.77/2,346.64
  6. Step 6: Final answer
    x = 1,054.73

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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.