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Finding the Fourth Proportional to 51,206.70, 76,813.65 and 29,030.70

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Solution

The fourth proportional to 51,206.70, 76,813.65 and 29,030.70 is: 43,548.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,206.70 : 76,813.65 = 29,030.70 : x
  2. Step 2: Convert to fraction form
    51,206.70/76,813.65 = 29,030.70/x
  3. Step 3: Cross multiply
    51,206.70x = 76,813.65 × 29,030.70
  4. Step 4: Simplify right side
    51,206.70x = 2,229,954,029.06
  5. Step 5: Solve for x
    x = 2,229,954,029.06/51,206.70
  6. Step 6: Final answer
    x = 43,548.09

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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.