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Finding the Fourth Proportional to 52,773.81, 79,160.87 and 12,792.63

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Solution

The fourth proportional to 52,773.81, 79,160.87 and 12,792.63 is: 19,188.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,773.81 : 79,160.87 = 12,792.63 : x
  2. Step 2: Convert to fraction form
    52,773.81/79,160.87 = 12,792.63/x
  3. Step 3: Cross multiply
    52,773.81x = 79,160.87 × 12,792.63
  4. Step 4: Simplify right side
    52,773.81x = 1,012,676,013.24
  5. Step 5: Solve for x
    x = 1,012,676,013.24/52,773.81
  6. Step 6: Final answer
    x = 19,188.99

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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.