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Finding the Fourth Proportional to 29,489.19, 40,696.79 and 22,208.25

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Solution

The fourth proportional to 29,489.19, 40,696.79 and 22,208.25 is: 30,648.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,489.19 : 40,696.79 = 22,208.25 : x
  2. Step 2: Convert to fraction form
    29,489.19/40,696.79 = 22,208.25/x
  3. Step 3: Cross multiply
    29,489.19x = 40,696.79 × 22,208.25
  4. Step 4: Simplify right side
    29,489.19x = 903,804,486.52
  5. Step 5: Solve for x
    x = 903,804,486.52/29,489.19
  6. Step 6: Final answer
    x = 30,648.67

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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.