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Finding the Fourth Proportional to 53,173.85, 79,774.43 and 15,732.41

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Solution

The fourth proportional to 53,173.85, 79,774.43 and 15,732.41 is: 23,602.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,173.85 : 79,774.43 = 15,732.41 : x
  2. Step 2: Convert to fraction form
    53,173.85/79,774.43 = 15,732.41/x
  3. Step 3: Cross multiply
    53,173.85x = 79,774.43 × 15,732.41
  4. Step 4: Simplify right side
    53,173.85x = 1,255,043,562.74
  5. Step 5: Solve for x
    x = 1,255,043,562.74/53,173.85
  6. Step 6: Final answer
    x = 23,602.65

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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.