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Finding the Fourth Proportional to 2,900.63, 4,351.66 and 848.63

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Solution

The fourth proportional to 2,900.63, 4,351.66 and 848.63 is: 1,273.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,900.63 : 4,351.66 = 848.63 : x
  2. Step 2: Convert to fraction form
    2,900.63/4,351.66 = 848.63/x
  3. Step 3: Cross multiply
    2,900.63x = 4,351.66 × 848.63
  4. Step 4: Simplify right side
    2,900.63x = 3,692,949.23
  5. Step 5: Solve for x
    x = 3,692,949.23/2,900.63
  6. Step 6: Final answer
    x = 1,273.15

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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.