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Finding the Fourth Proportional to 2,624.51, 3,937.17 and 893

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Solution

The fourth proportional to 2,624.51, 3,937.17 and 893 is: 1,339.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,624.51 : 3,937.17 = 893 : x
  2. Step 2: Convert to fraction form
    2,624.51/3,937.17 = 893/x
  3. Step 3: Cross multiply
    2,624.51x = 3,937.17 × 893
  4. Step 4: Simplify right side
    2,624.51x = 3,515,892.81
  5. Step 5: Solve for x
    x = 3,515,892.81/2,624.51
  6. Step 6: Final answer
    x = 1,339.64

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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.