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Finding the Fourth Proportional to 8,456.64, 11,670.04 and 4,730.64

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Solution

The fourth proportional to 8,456.64, 11,670.04 and 4,730.64 is: 6,528.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,456.64 : 11,670.04 = 4,730.64 : x
  2. Step 2: Convert to fraction form
    8,456.64/11,670.04 = 4,730.64/x
  3. Step 3: Cross multiply
    8,456.64x = 11,670.04 × 4,730.64
  4. Step 4: Simplify right side
    8,456.64x = 55,206,758.03
  5. Step 5: Solve for x
    x = 55,206,758.03/8,456.64
  6. Step 6: Final answer
    x = 6,528.21

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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.