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Finding the Fourth Proportional to 4,762.36, 7,143.90 and 1,475.56

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Solution

The fourth proportional to 4,762.36, 7,143.90 and 1,475.56 is: 2,213.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,762.36 : 7,143.90 = 1,475.56 : x
  2. Step 2: Convert to fraction form
    4,762.36/7,143.90 = 1,475.56/x
  3. Step 3: Cross multiply
    4,762.36x = 7,143.90 × 1,475.56
  4. Step 4: Simplify right side
    4,762.36x = 10,541,253.08
  5. Step 5: Solve for x
    x = 10,541,253.08/4,762.36
  6. Step 6: Final answer
    x = 2,213.45

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Why These Related Problems?

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