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Finding the Fourth Proportional to 5,166.99, 7,131.11 and 2,929.77

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Solution

The fourth proportional to 5,166.99, 7,131.11 and 2,929.77 is: 4,043.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,166.99 : 7,131.11 = 2,929.77 : x
  2. Step 2: Convert to fraction form
    5,166.99/7,131.11 = 2,929.77/x
  3. Step 3: Cross multiply
    5,166.99x = 7,131.11 × 2,929.77
  4. Step 4: Simplify right side
    5,166.99x = 20,892,497.50
  5. Step 5: Solve for x
    x = 20,892,497.50/5,166.99
  6. Step 6: Final answer
    x = 4,043.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.