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Finding the Fourth Proportional to 5,631.05, 8,398.74 and 4,894.76

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Solution

The fourth proportional to 5,631.05, 8,398.74 and 4,894.76 is: 7,300.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,631.05 : 8,398.74 = 4,894.76 : x
  2. Step 2: Convert to fraction form
    5,631.05/8,398.74 = 4,894.76/x
  3. Step 3: Cross multiply
    5,631.05x = 8,398.74 × 4,894.76
  4. Step 4: Simplify right side
    5,631.05x = 41,109,828.42
  5. Step 5: Solve for x
    x = 41,109,828.42/5,631.05
  6. Step 6: Final answer
    x = 7,300.56

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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.