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Finding the Fourth Proportional to 52,580.50, 72,562.80 and 28,708.99

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Solution

The fourth proportional to 52,580.50, 72,562.80 and 28,708.99 is: 39,619.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,580.50 : 72,562.80 = 28,708.99 : x
  2. Step 2: Convert to fraction form
    52,580.50/72,562.80 = 28,708.99/x
  3. Step 3: Cross multiply
    52,580.50x = 72,562.80 × 28,708.99
  4. Step 4: Simplify right side
    52,580.50x = 2,083,204,625.82
  5. Step 5: Solve for x
    x = 2,083,204,625.82/52,580.50
  6. Step 6: Final answer
    x = 39,619.34

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.