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Finding the Fourth Proportional to 29,295.56, 43,941.51 and 12,643.88

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Solution

The fourth proportional to 29,295.56, 43,941.51 and 12,643.88 is: 18,965.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,295.56 : 43,941.51 = 12,643.88 : x
  2. Step 2: Convert to fraction form
    29,295.56/43,941.51 = 12,643.88/x
  3. Step 3: Cross multiply
    29,295.56x = 43,941.51 × 12,643.88
  4. Step 4: Simplify right side
    29,295.56x = 555,590,959.75
  5. Step 5: Solve for x
    x = 555,590,959.75/29,295.56
  6. Step 6: Final answer
    x = 18,965.03

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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.