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Finding the Fourth Proportional to 4,731.64, 7,101.24 and 2,785.48

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Solution

The fourth proportional to 4,731.64, 7,101.24 and 2,785.48 is: 4,180.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,731.64 : 7,101.24 = 2,785.48 : x
  2. Step 2: Convert to fraction form
    4,731.64/7,101.24 = 2,785.48/x
  3. Step 3: Cross multiply
    4,731.64x = 7,101.24 × 2,785.48
  4. Step 4: Simplify right side
    4,731.64x = 19,780,362.00
  5. Step 5: Solve for x
    x = 19,780,362.00/4,731.64
  6. Step 6: Final answer
    x = 4,180.45

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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.