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Finding the Fourth Proportional to 52,792.80, 79,145.40 and 19,506.60

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Solution

The fourth proportional to 52,792.80, 79,145.40 and 19,506.60 is: 29,243.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,792.80 : 79,145.40 = 19,506.60 : x
  2. Step 2: Convert to fraction form
    52,792.80/79,145.40 = 19,506.60/x
  3. Step 3: Cross multiply
    52,792.80x = 79,145.40 × 19,506.60
  4. Step 4: Simplify right side
    52,792.80x = 1,543,857,659.64
  5. Step 5: Solve for x
    x = 1,543,857,659.64/52,792.80
  6. Step 6: Final answer
    x = 29,243.72

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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.