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Finding the Third Proportional to 3,604 and 4,140

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Solution

The third proportional to 3,604 and 4,140 is: 4,755.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,604 : 4,140 = 4,140 : x
  2. Step 2: Convert to fraction form
    3,604/4,140 = 4,140/x
  3. Step 3: Cross multiply
    3,604x = 4,140 × 4,140
  4. Step 4: Simplify right side
    3,604x = 17,139,600
  5. Step 5: Solve for x
    x = 17,139,600/3,604
  6. Step 6: Final answer
    x = 4,755.72

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These problems maintain the same ratio (1.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.