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Finding the Fourth Proportional to 12,130.50, 16,740.87 and 7,353.72

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Solution

The fourth proportional to 12,130.50, 16,740.87 and 7,353.72 is: 10,148.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,130.50 : 16,740.87 = 7,353.72 : x
  2. Step 2: Convert to fraction form
    12,130.50/16,740.87 = 7,353.72/x
  3. Step 3: Cross multiply
    12,130.50x = 16,740.87 × 7,353.72
  4. Step 4: Simplify right side
    12,130.50x = 123,107,670.54
  5. Step 5: Solve for x
    x = 123,107,670.54/12,130.50
  6. Step 6: Final answer
    x = 10,148.61

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