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Finding the Fourth Proportional to 19,951.09, 29,931.29 and 6,803.57

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Solution

The fourth proportional to 19,951.09, 29,931.29 and 6,803.57 is: 10,206.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,951.09 : 29,931.29 = 6,803.57 : x
  2. Step 2: Convert to fraction form
    19,951.09/29,931.29 = 6,803.57/x
  3. Step 3: Cross multiply
    19,951.09x = 29,931.29 × 6,803.57
  4. Step 4: Simplify right side
    19,951.09x = 203,639,626.71
  5. Step 5: Solve for x
    x = 203,639,626.71/19,951.09
  6. Step 6: Final answer
    x = 10,206.94

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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.