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Finding the Fourth Proportional to 8,920.84, 13,371.23 and 4,237.01

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Solution

The fourth proportional to 8,920.84, 13,371.23 and 4,237.01 is: 6,350.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,920.84 : 13,371.23 = 4,237.01 : x
  2. Step 2: Convert to fraction form
    8,920.84/13,371.23 = 4,237.01/x
  3. Step 3: Cross multiply
    8,920.84x = 13,371.23 × 4,237.01
  4. Step 4: Simplify right side
    8,920.84x = 56,654,068.65
  5. Step 5: Solve for x
    x = 56,654,068.65/8,920.84
  6. Step 6: Final answer
    x = 6,350.76

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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.