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Finding the Fourth Proportional to 2,900.88, 4,003.22 and 1,574.59

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Solution

The fourth proportional to 2,900.88, 4,003.22 and 1,574.59 is: 2,172.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,900.88 : 4,003.22 = 1,574.59 : x
  2. Step 2: Convert to fraction form
    2,900.88/4,003.22 = 1,574.59/x
  3. Step 3: Cross multiply
    2,900.88x = 4,003.22 × 1,574.59
  4. Step 4: Simplify right side
    2,900.88x = 6,303,424.11
  5. Step 5: Solve for x
    x = 6,303,424.11/2,900.88
  6. Step 6: Final answer
    x = 2,172.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.