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Finding the Fourth Proportional to 5,323.51, 7,978.65 and 3,376.27

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Solution

The fourth proportional to 5,323.51, 7,978.65 and 3,376.27 is: 5,060.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,323.51 : 7,978.65 = 3,376.27 : x
  2. Step 2: Convert to fraction form
    5,323.51/7,978.65 = 3,376.27/x
  3. Step 3: Cross multiply
    5,323.51x = 7,978.65 × 3,376.27
  4. Step 4: Simplify right side
    5,323.51x = 26,938,076.64
  5. Step 5: Solve for x
    x = 26,938,076.64/5,323.51
  6. Step 6: Final answer
    x = 5,060.21

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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.