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Finding the Fourth Proportional to 61,869.98, 92,816.51 and 28,568.04

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Solution

The fourth proportional to 61,869.98, 92,816.51 and 28,568.04 is: 42,857.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,869.98 : 92,816.51 = 28,568.04 : x
  2. Step 2: Convert to fraction form
    61,869.98/92,816.51 = 28,568.04/x
  3. Step 3: Cross multiply
    61,869.98x = 92,816.51 × 28,568.04
  4. Step 4: Simplify right side
    61,869.98x = 2,651,585,627.50
  5. Step 5: Solve for x
    x = 2,651,585,627.50/61,869.98
  6. Step 6: Final answer
    x = 42,857.39

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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.