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Finding the Fourth Proportional to 34,719.93, 52,079.94 and 8,424.72

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Solution

The fourth proportional to 34,719.93, 52,079.94 and 8,424.72 is: 12,637.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,719.93 : 52,079.94 = 8,424.72 : x
  2. Step 2: Convert to fraction form
    34,719.93/52,079.94 = 8,424.72/x
  3. Step 3: Cross multiply
    34,719.93x = 52,079.94 × 8,424.72
  4. Step 4: Simplify right side
    34,719.93x = 438,758,912.12
  5. Step 5: Solve for x
    x = 438,758,912.12/34,719.93
  6. Step 6: Final answer
    x = 12,637.09

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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.