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Finding the Fourth Proportional to 45,689.94, 68,482.43 and 28,600.50

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Solution

The fourth proportional to 45,689.94, 68,482.43 and 28,600.50 is: 42,867.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,689.94 : 68,482.43 = 28,600.50 : x
  2. Step 2: Convert to fraction form
    45,689.94/68,482.43 = 28,600.50/x
  3. Step 3: Cross multiply
    45,689.94x = 68,482.43 × 28,600.50
  4. Step 4: Simplify right side
    45,689.94x = 1,958,631,960.27
  5. Step 5: Solve for x
    x = 1,958,631,960.27/45,689.94
  6. Step 6: Final answer
    x = 42,867.90

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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.