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Finding the Fourth Proportional to 6,464.64, 9,696.96 and 3,000

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Solution

The fourth proportional to 6,464.64, 9,696.96 and 3,000 is: 4,500.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,464.64 : 9,696.96 = 3,000 : x
  2. Step 2: Convert to fraction form
    6,464.64/9,696.96 = 3,000/x
  3. Step 3: Cross multiply
    6,464.64x = 9,696.96 × 3,000
  4. Step 4: Simplify right side
    6,464.64x = 29,090,880.00
  5. Step 5: Solve for x
    x = 29,090,880.00/6,464.64
  6. Step 6: Final answer
    x = 4,500.00

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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.