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Finding the Fourth Proportional to 3,210.86, 4,812.57 and 1,475.84

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Solution

The fourth proportional to 3,210.86, 4,812.57 and 1,475.84 is: 2,212.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,210.86 : 4,812.57 = 1,475.84 : x
  2. Step 2: Convert to fraction form
    3,210.86/4,812.57 = 1,475.84/x
  3. Step 3: Cross multiply
    3,210.86x = 4,812.57 × 1,475.84
  4. Step 4: Simplify right side
    3,210.86x = 7,102,559.25
  5. Step 5: Solve for x
    x = 7,102,559.25/3,210.86
  6. Step 6: Final answer
    x = 2,212.05

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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.