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Finding the Fourth Proportional to 53,154.99, 79,704.80 and 19,847.66

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Solution

The fourth proportional to 53,154.99, 79,704.80 and 19,847.66 is: 29,761.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,154.99 : 79,704.80 = 19,847.66 : x
  2. Step 2: Convert to fraction form
    53,154.99/79,704.80 = 19,847.66/x
  3. Step 3: Cross multiply
    53,154.99x = 79,704.80 × 19,847.66
  4. Step 4: Simplify right side
    53,154.99x = 1,581,953,671.53
  5. Step 5: Solve for x
    x = 1,581,953,671.53/53,154.99
  6. Step 6: Final answer
    x = 29,761.15

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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.