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Finding the Fourth Proportional to 4,850, 7,234.72 and 4,688.02

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Solution

The fourth proportional to 4,850, 7,234.72 and 4,688.02 is: 6,993.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,850 : 7,234.72 = 4,688.02 : x
  2. Step 2: Convert to fraction form
    4,850/7,234.72 = 4,688.02/x
  3. Step 3: Cross multiply
    4,850x = 7,234.72 × 4,688.02
  4. Step 4: Simplify right side
    4,850x = 33,916,512.05
  5. Step 5: Solve for x
    x = 33,916,512.05/4,850
  6. Step 6: Final answer
    x = 6,993.10

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.