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Finding the Fourth Proportional to 32,762.64, 49,143.93 and 8,138.64

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Solution

The fourth proportional to 32,762.64, 49,143.93 and 8,138.64 is: 12,207.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,762.64 : 49,143.93 = 8,138.64 : x
  2. Step 2: Convert to fraction form
    32,762.64/49,143.93 = 8,138.64/x
  3. Step 3: Cross multiply
    32,762.64x = 49,143.93 × 8,138.64
  4. Step 4: Simplify right side
    32,762.64x = 399,964,754.46
  5. Step 5: Solve for x
    x = 399,964,754.46/32,762.64
  6. Step 6: Final answer
    x = 12,207.95

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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.