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Finding the Fourth Proportional to 7,607.68, 11,416.10 and 2,681

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Solution

The fourth proportional to 7,607.68, 11,416.10 and 2,681 is: 4,023.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,607.68 : 11,416.10 = 2,681 : x
  2. Step 2: Convert to fraction form
    7,607.68/11,416.10 = 2,681/x
  3. Step 3: Cross multiply
    7,607.68x = 11,416.10 × 2,681
  4. Step 4: Simplify right side
    7,607.68x = 30,606,564.10
  5. Step 5: Solve for x
    x = 30,606,564.10/7,607.68
  6. Step 6: Final answer
    x = 4,023.11

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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.