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Finding the Fourth Proportional to 29,061.98, 43,594.94 and 12,421.94

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Solution

The fourth proportional to 29,061.98, 43,594.94 and 12,421.94 is: 18,633.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,061.98 : 43,594.94 = 12,421.94 : x
  2. Step 2: Convert to fraction form
    29,061.98/43,594.94 = 12,421.94/x
  3. Step 3: Cross multiply
    29,061.98x = 43,594.94 × 12,421.94
  4. Step 4: Simplify right side
    29,061.98x = 541,533,448.90
  5. Step 5: Solve for x
    x = 541,533,448.90/29,061.98
  6. Step 6: Final answer
    x = 18,633.75

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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.