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Finding the Fourth Proportional to 39,186.74, 58,780.18 and 9,604.64

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Solution

The fourth proportional to 39,186.74, 58,780.18 and 9,604.64 is: 14,406.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,186.74 : 58,780.18 = 9,604.64 : x
  2. Step 2: Convert to fraction form
    39,186.74/58,780.18 = 9,604.64/x
  3. Step 3: Cross multiply
    39,186.74x = 58,780.18 × 9,604.64
  4. Step 4: Simplify right side
    39,186.74x = 564,562,468.04
  5. Step 5: Solve for x
    x = 564,562,468.04/39,186.74
  6. Step 6: Final answer
    x = 14,406.98

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.