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Finding the Fourth Proportional to 13,459.62, 18,575.29 and 7,795.90

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Solution

The fourth proportional to 13,459.62, 18,575.29 and 7,795.90 is: 10,758.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,459.62 : 18,575.29 = 7,795.90 : x
  2. Step 2: Convert to fraction form
    13,459.62/18,575.29 = 7,795.90/x
  3. Step 3: Cross multiply
    13,459.62x = 18,575.29 × 7,795.90
  4. Step 4: Simplify right side
    13,459.62x = 144,811,103.31
  5. Step 5: Solve for x
    x = 144,811,103.31/13,459.62
  6. Step 6: Final answer
    x = 10,758.93

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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.