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Finding the Fourth Proportional to 9,716, 13,407.84 and 5,523.68

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Solution

The fourth proportional to 9,716, 13,407.84 and 5,523.68 is: 7,622.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,716 : 13,407.84 = 5,523.68 : x
  2. Step 2: Convert to fraction form
    9,716/13,407.84 = 5,523.68/x
  3. Step 3: Cross multiply
    9,716x = 13,407.84 × 5,523.68
  4. Step 4: Simplify right side
    9,716x = 74,060,617.65
  5. Step 5: Solve for x
    x = 74,060,617.65/9,716
  6. Step 6: Final answer
    x = 7,622.54

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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.