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Finding the Fourth Proportional to 8,518.74, 12,776.90 and 2,673.51

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Solution

The fourth proportional to 8,518.74, 12,776.90 and 2,673.51 is: 4,009.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,518.74 : 12,776.90 = 2,673.51 : x
  2. Step 2: Convert to fraction form
    8,518.74/12,776.90 = 2,673.51/x
  3. Step 3: Cross multiply
    8,518.74x = 12,776.90 × 2,673.51
  4. Step 4: Simplify right side
    8,518.74x = 34,159,156.55
  5. Step 5: Solve for x
    x = 34,159,156.55/8,518.74
  6. Step 6: Final answer
    x = 4,009.88

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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.