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Finding the Fourth Proportional to 61,797.84, 92,724.32 and 28,500

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Solution

The fourth proportional to 61,797.84, 92,724.32 and 28,500 is: 42,762.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,797.84 : 92,724.32 = 28,500 : x
  2. Step 2: Convert to fraction form
    61,797.84/92,724.32 = 28,500/x
  3. Step 3: Cross multiply
    61,797.84x = 92,724.32 × 28,500
  4. Step 4: Simplify right side
    61,797.84x = 2,642,643,120
  5. Step 5: Solve for x
    x = 2,642,643,120/61,797.84
  6. Step 6: Final answer
    x = 42,762.71

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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.