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Finding the Fourth Proportional to 52,866.36, 79,274.43 and 30,686.54

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Solution

The fourth proportional to 52,866.36, 79,274.43 and 30,686.54 is: 46,015.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,866.36 : 79,274.43 = 30,686.54 : x
  2. Step 2: Convert to fraction form
    52,866.36/79,274.43 = 30,686.54/x
  3. Step 3: Cross multiply
    52,866.36x = 79,274.43 × 30,686.54
  4. Step 4: Simplify right side
    52,866.36x = 2,432,657,570.80
  5. Step 5: Solve for x
    x = 2,432,657,570.80/52,866.36
  6. Step 6: Final answer
    x = 46,015.23

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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.