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Finding the Fourth Proportional to 5,376.85, 7,403.97 and 4,984.81

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Solution

The fourth proportional to 5,376.85, 7,403.97 and 4,984.81 is: 6,864.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,376.85 : 7,403.97 = 4,984.81 : x
  2. Step 2: Convert to fraction form
    5,376.85/7,403.97 = 4,984.81/x
  3. Step 3: Cross multiply
    5,376.85x = 7,403.97 × 4,984.81
  4. Step 4: Simplify right side
    5,376.85x = 36,907,365.19
  5. Step 5: Solve for x
    x = 36,907,365.19/5,376.85
  6. Step 6: Final answer
    x = 6,864.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.