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Finding the Fourth Proportional to 52,759.89, 72,808.67 and 28,888.08

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Solution

The fourth proportional to 52,759.89, 72,808.67 and 28,888.08 is: 39,865.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,759.89 : 72,808.67 = 28,888.08 : x
  2. Step 2: Convert to fraction form
    52,759.89/72,808.67 = 28,888.08/x
  3. Step 3: Cross multiply
    52,759.89x = 72,808.67 × 28,888.08
  4. Step 4: Simplify right side
    52,759.89x = 2,103,302,539.21
  5. Step 5: Solve for x
    x = 2,103,302,539.21/52,759.89
  6. Step 6: Final answer
    x = 39,865.56

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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.