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Finding the Fourth Proportional to 11,718.76, 17,574.70 and 4,698.76

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Solution

The fourth proportional to 11,718.76, 17,574.70 and 4,698.76 is: 7,046.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,718.76 : 17,574.70 = 4,698.76 : x
  2. Step 2: Convert to fraction form
    11,718.76/17,574.70 = 4,698.76/x
  3. Step 3: Cross multiply
    11,718.76x = 17,574.70 × 4,698.76
  4. Step 4: Simplify right side
    11,718.76x = 82,579,297.37
  5. Step 5: Solve for x
    x = 82,579,297.37/11,718.76
  6. Step 6: Final answer
    x = 7,046.76

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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.