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Finding the Fourth Proportional to 52,807.55, 79,207.47 and 19,512.09

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Solution

The fourth proportional to 52,807.55, 79,207.47 and 19,512.09 is: 29,266.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,807.55 : 79,207.47 = 19,512.09 : x
  2. Step 2: Convert to fraction form
    52,807.55/79,207.47 = 19,512.09/x
  3. Step 3: Cross multiply
    52,807.55x = 79,207.47 × 19,512.09
  4. Step 4: Simplify right side
    52,807.55x = 1,545,503,283.31
  5. Step 5: Solve for x
    x = 1,545,503,283.31/52,807.55
  6. Step 6: Final answer
    x = 29,266.71

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1.5x scale

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.