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Finding the Fourth Proportional to 43,625.70, 65,429.22 and 19,926.51

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Solution

The fourth proportional to 43,625.70, 65,429.22 and 19,926.51 is: 29,885.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,625.70 : 65,429.22 = 19,926.51 : x
  2. Step 2: Convert to fraction form
    43,625.70/65,429.22 = 19,926.51/x
  3. Step 3: Cross multiply
    43,625.70x = 65,429.22 × 19,926.51
  4. Step 4: Simplify right side
    43,625.70x = 1,303,776,006.62
  5. Step 5: Solve for x
    x = 1,303,776,006.62/43,625.70
  6. Step 6: Final answer
    x = 29,885.50

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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.