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Finding the Fourth Proportional to 61,880.75, 92,806.24 and 28,568.81

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Solution

The fourth proportional to 61,880.75, 92,806.24 and 28,568.81 is: 42,846.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,880.75 : 92,806.24 = 28,568.81 : x
  2. Step 2: Convert to fraction form
    61,880.75/92,806.24 = 28,568.81/x
  3. Step 3: Cross multiply
    61,880.75x = 92,806.24 × 28,568.81
  4. Step 4: Simplify right side
    61,880.75x = 2,651,363,301.92
  5. Step 5: Solve for x
    x = 2,651,363,301.92/61,880.75
  6. Step 6: Final answer
    x = 42,846.34

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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.