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Finding the Fourth Proportional to 3,953.02, 5,931.26 and 1,874.51

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Solution

The fourth proportional to 3,953.02, 5,931.26 and 1,874.51 is: 2,812.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,953.02 : 5,931.26 = 1,874.51 : x
  2. Step 2: Convert to fraction form
    3,953.02/5,931.26 = 1,874.51/x
  3. Step 3: Cross multiply
    3,953.02x = 5,931.26 × 1,874.51
  4. Step 4: Simplify right side
    3,953.02x = 11,118,167.15
  5. Step 5: Solve for x
    x = 11,118,167.15/3,953.02
  6. Step 6: Final answer
    x = 2,812.58

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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.