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Finding the Fourth Proportional to 2,900.98, 4,351.83 and 925.93

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Solution

The fourth proportional to 2,900.98, 4,351.83 and 925.93 is: 1,389.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,900.98 : 4,351.83 = 925.93 : x
  2. Step 2: Convert to fraction form
    2,900.98/4,351.83 = 925.93/x
  3. Step 3: Cross multiply
    2,900.98x = 4,351.83 × 925.93
  4. Step 4: Simplify right side
    2,900.98x = 4,029,491.92
  5. Step 5: Solve for x
    x = 4,029,491.92/2,900.98
  6. Step 6: Final answer
    x = 1,389.01

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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.