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Finding the Fourth Proportional to 4,926.65, 7,389.90 and 1,228.86

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Solution

The fourth proportional to 4,926.65, 7,389.90 and 1,228.86 is: 1,843.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,926.65 : 7,389.90 = 1,228.86 : x
  2. Step 2: Convert to fraction form
    4,926.65/7,389.90 = 1,228.86/x
  3. Step 3: Cross multiply
    4,926.65x = 7,389.90 × 1,228.86
  4. Step 4: Simplify right side
    4,926.65x = 9,081,152.51
  5. Step 5: Solve for x
    x = 9,081,152.51/4,926.65
  6. Step 6: Final answer
    x = 1,843.27

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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.