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Finding the Fourth Proportional to 61,802.68, 92,639.38 and 28,544.56

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Solution

The fourth proportional to 61,802.68, 92,639.38 and 28,544.56 is: 42,786.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,802.68 : 92,639.38 = 28,544.56 : x
  2. Step 2: Convert to fraction form
    61,802.68/92,639.38 = 28,544.56/x
  3. Step 3: Cross multiply
    61,802.68x = 92,639.38 × 28,544.56
  4. Step 4: Simplify right side
    61,802.68x = 2,644,350,863.13
  5. Step 5: Solve for x
    x = 2,644,350,863.13/61,802.68
  6. Step 6: Final answer
    x = 42,786.99

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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.