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Finding the Fourth Proportional to 26,929.94, 40,394.97 and 7,208.46

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Solution

The fourth proportional to 26,929.94, 40,394.97 and 7,208.46 is: 10,812.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,929.94 : 40,394.97 = 7,208.46 : x
  2. Step 2: Convert to fraction form
    26,929.94/40,394.97 = 7,208.46/x
  3. Step 3: Cross multiply
    26,929.94x = 40,394.97 × 7,208.46
  4. Step 4: Simplify right side
    26,929.94x = 291,185,525.45
  5. Step 5: Solve for x
    x = 291,185,525.45/26,929.94
  6. Step 6: Final answer
    x = 10,812.71

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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.