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Finding the Fourth Proportional to 8,465.10, 12,697.65 and 3,200.10

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Solution

The fourth proportional to 8,465.10, 12,697.65 and 3,200.10 is: 4,800.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,465.10 : 12,697.65 = 3,200.10 : x
  2. Step 2: Convert to fraction form
    8,465.10/12,697.65 = 3,200.10/x
  3. Step 3: Cross multiply
    8,465.10x = 12,697.65 × 3,200.10
  4. Step 4: Simplify right side
    8,465.10x = 40,633,749.77
  5. Step 5: Solve for x
    x = 40,633,749.77/8,465.10
  6. Step 6: Final answer
    x = 4,800.15

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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.