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Finding the Fourth Proportional to 52,806.74, 72,873.38 and 28,933.40

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Solution

The fourth proportional to 52,806.74, 72,873.38 and 28,933.40 is: 39,928.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,806.74 : 72,873.38 = 28,933.40 : x
  2. Step 2: Convert to fraction form
    52,806.74/72,873.38 = 28,933.40/x
  3. Step 3: Cross multiply
    52,806.74x = 72,873.38 × 28,933.40
  4. Step 4: Simplify right side
    52,806.74x = 2,108,474,652.89
  5. Step 5: Solve for x
    x = 2,108,474,652.89/52,806.74
  6. Step 6: Final answer
    x = 39,928.14

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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.