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Finding the Fourth Proportional to 5,319.30, 7,978.35 and 2,032.32

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Solution

The fourth proportional to 5,319.30, 7,978.35 and 2,032.32 is: 3,048.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,319.30 : 7,978.35 = 2,032.32 : x
  2. Step 2: Convert to fraction form
    5,319.30/7,978.35 = 2,032.32/x
  3. Step 3: Cross multiply
    5,319.30x = 7,978.35 × 2,032.32
  4. Step 4: Simplify right side
    5,319.30x = 16,214,560.27
  5. Step 5: Solve for x
    x = 16,214,560.27/5,319.30
  6. Step 6: Final answer
    x = 3,048.25

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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.