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Finding the Fourth Proportional to 4,890.96, 7,336.74 and 1,969.26

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Solution

The fourth proportional to 4,890.96, 7,336.74 and 1,969.26 is: 2,954.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,890.96 : 7,336.74 = 1,969.26 : x
  2. Step 2: Convert to fraction form
    4,890.96/7,336.74 = 1,969.26/x
  3. Step 3: Cross multiply
    4,890.96x = 7,336.74 × 1,969.26
  4. Step 4: Simplify right side
    4,890.96x = 14,447,948.61
  5. Step 5: Solve for x
    x = 14,447,948.61/4,890.96
  6. Step 6: Final answer
    x = 2,954.01

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1.5x scale

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.