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Finding the Fourth Proportional to 32,640.66, 48,953.70 and 12,923.64

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Solution

The fourth proportional to 32,640.66, 48,953.70 and 12,923.64 is: 19,382.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,640.66 : 48,953.70 = 12,923.64 : x
  2. Step 2: Convert to fraction form
    32,640.66/48,953.70 = 12,923.64/x
  3. Step 3: Cross multiply
    32,640.66x = 48,953.70 × 12,923.64
  4. Step 4: Simplify right side
    32,640.66x = 632,659,995.47
  5. Step 5: Solve for x
    x = 632,659,995.47/32,640.66
  6. Step 6: Final answer
    x = 19,382.57

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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.