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Finding the Fourth Proportional to 7,605.89, 11,411.10 and 2,926.31

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Solution

The fourth proportional to 7,605.89, 11,411.10 and 2,926.31 is: 4,390.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,605.89 : 11,411.10 = 2,926.31 : x
  2. Step 2: Convert to fraction form
    7,605.89/11,411.10 = 2,926.31/x
  3. Step 3: Cross multiply
    7,605.89x = 11,411.10 × 2,926.31
  4. Step 4: Simplify right side
    7,605.89x = 33,392,358.99
  5. Step 5: Solve for x
    x = 33,392,358.99/7,605.89
  6. Step 6: Final answer
    x = 4,390.33

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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.