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Finding the Fourth Proportional to 9,608.40, 14,410.04 and 2,681.68

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Solution

The fourth proportional to 9,608.40, 14,410.04 and 2,681.68 is: 4,021.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,608.40 : 14,410.04 = 2,681.68 : x
  2. Step 2: Convert to fraction form
    9,608.40/14,410.04 = 2,681.68/x
  3. Step 3: Cross multiply
    9,608.40x = 14,410.04 × 2,681.68
  4. Step 4: Simplify right side
    9,608.40x = 38,643,116.07
  5. Step 5: Solve for x
    x = 38,643,116.07/9,608.40
  6. Step 6: Final answer
    x = 4,021.81

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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.