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Finding the Fourth Proportional to 51,301.80, 76,962.62 and 19,709.48

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Solution

The fourth proportional to 51,301.80, 76,962.62 and 19,709.48 is: 29,568.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,301.80 : 76,962.62 = 19,709.48 : x
  2. Step 2: Convert to fraction form
    51,301.80/76,962.62 = 19,709.48/x
  3. Step 3: Cross multiply
    51,301.80x = 76,962.62 × 19,709.48
  4. Step 4: Simplify right side
    51,301.80x = 1,516,893,219.64
  5. Step 5: Solve for x
    x = 1,516,893,219.64/51,301.80
  6. Step 6: Final answer
    x = 29,568.03

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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.