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Finding the Fourth Proportional to 29,346.66, 43,970.31 and 20,984.22

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Solution

The fourth proportional to 29,346.66, 43,970.31 and 20,984.22 is: 31,440.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,346.66 : 43,970.31 = 20,984.22 : x
  2. Step 2: Convert to fraction form
    29,346.66/43,970.31 = 20,984.22/x
  3. Step 3: Cross multiply
    29,346.66x = 43,970.31 × 20,984.22
  4. Step 4: Simplify right side
    29,346.66x = 922,682,658.51
  5. Step 5: Solve for x
    x = 922,682,658.51/29,346.66
  6. Step 6: Final answer
    x = 31,440.81

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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.