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Finding the Fourth Proportional to 29,055.30, 40,115.49 and 22,328.70

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Solution

The fourth proportional to 29,055.30, 40,115.49 and 22,328.70 is: 30,828.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,055.30 : 40,115.49 = 22,328.70 : x
  2. Step 2: Convert to fraction form
    29,055.30/40,115.49 = 22,328.70/x
  3. Step 3: Cross multiply
    29,055.30x = 40,115.49 × 22,328.70
  4. Step 4: Simplify right side
    29,055.30x = 895,726,741.56
  5. Step 5: Solve for x
    x = 895,726,741.56/29,055.30
  6. Step 6: Final answer
    x = 30,828.34

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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.