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Finding the Fourth Proportional to 28,600.83, 42,901.11 and 7,253.55

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Solution

The fourth proportional to 28,600.83, 42,901.11 and 7,253.55 is: 10,880.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,600.83 : 42,901.11 = 7,253.55 : x
  2. Step 2: Convert to fraction form
    28,600.83/42,901.11 = 7,253.55/x
  3. Step 3: Cross multiply
    28,600.83x = 42,901.11 × 7,253.55
  4. Step 4: Simplify right side
    28,600.83x = 311,185,346.44
  5. Step 5: Solve for x
    x = 311,185,346.44/28,600.83
  6. Step 6: Final answer
    x = 10,880.29

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1.5x scale

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.