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Finding the Fourth Proportional to 2,953.48, 4,429.74 and 901

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Solution

The fourth proportional to 2,953.48, 4,429.74 and 901 is: 1,351.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,953.48 : 4,429.74 = 901 : x
  2. Step 2: Convert to fraction form
    2,953.48/4,429.74 = 901/x
  3. Step 3: Cross multiply
    2,953.48x = 4,429.74 × 901
  4. Step 4: Simplify right side
    2,953.48x = 3,991,195.74
  5. Step 5: Solve for x
    x = 3,991,195.74/2,953.48
  6. Step 6: Final answer
    x = 1,351.35

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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.