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Finding the Fourth Proportional to 4,767.72, 6,579.52 and 2,643.32

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Solution

The fourth proportional to 4,767.72, 6,579.52 and 2,643.32 is: 3,647.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,767.72 : 6,579.52 = 2,643.32 : x
  2. Step 2: Convert to fraction form
    4,767.72/6,579.52 = 2,643.32/x
  3. Step 3: Cross multiply
    4,767.72x = 6,579.52 × 2,643.32
  4. Step 4: Simplify right side
    4,767.72x = 17,391,776.81
  5. Step 5: Solve for x
    x = 17,391,776.81/4,767.72
  6. Step 6: Final answer
    x = 3,647.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.