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Finding the Fourth Proportional to 8,956.36, 12,359.73 and 4,923.28

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Solution

The fourth proportional to 8,956.36, 12,359.73 and 4,923.28 is: 6,794.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,956.36 : 12,359.73 = 4,923.28 : x
  2. Step 2: Convert to fraction form
    8,956.36/12,359.73 = 4,923.28/x
  3. Step 3: Cross multiply
    8,956.36x = 12,359.73 × 4,923.28
  4. Step 4: Simplify right side
    8,956.36x = 60,850,411.51
  5. Step 5: Solve for x
    x = 60,850,411.51/8,956.36
  6. Step 6: Final answer
    x = 6,794.10

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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.