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Finding the Fourth Proportional to 29,055.40, 40,119 and 22,330.40

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Solution

The fourth proportional to 29,055.40, 40,119 and 22,330.40 is: 30,833.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,055.40 : 40,119 = 22,330.40 : x
  2. Step 2: Convert to fraction form
    29,055.40/40,119 = 22,330.40/x
  3. Step 3: Cross multiply
    29,055.40x = 40,119 × 22,330.40
  4. Step 4: Simplify right side
    29,055.40x = 895,873,317.60
  5. Step 5: Solve for x
    x = 895,873,317.60/29,055.40
  6. Step 6: Final answer
    x = 30,833.28

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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.