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Finding the Fourth Proportional to 58,012.80, 86,846.40 and 34,627.20

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Solution

The fourth proportional to 58,012.80, 86,846.40 and 34,627.20 is: 51,837.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,012.80 : 86,846.40 = 34,627.20 : x
  2. Step 2: Convert to fraction form
    58,012.80/86,846.40 = 34,627.20/x
  3. Step 3: Cross multiply
    58,012.80x = 86,846.40 × 34,627.20
  4. Step 4: Simplify right side
    58,012.80x = 3,007,247,662.08
  5. Step 5: Solve for x
    x = 3,007,247,662.08/58,012.80
  6. Step 6: Final answer
    x = 51,837.66

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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.