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Finding the Fourth Proportional to 2,926.94, 4,389.74 and 846.48

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Solution

The fourth proportional to 2,926.94, 4,389.74 and 846.48 is: 1,269.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,926.94 : 4,389.74 = 846.48 : x
  2. Step 2: Convert to fraction form
    2,926.94/4,389.74 = 846.48/x
  3. Step 3: Cross multiply
    2,926.94x = 4,389.74 × 846.48
  4. Step 4: Simplify right side
    2,926.94x = 3,715,805.17
  5. Step 5: Solve for x
    x = 3,715,805.17/2,926.94
  6. Step 6: Final answer
    x = 1,269.52

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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.