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Finding the Fourth Proportional to 29,047.90, 43,570.94 and 8,271.40

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Solution

The fourth proportional to 29,047.90, 43,570.94 and 8,271.40 is: 12,406.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,047.90 : 43,570.94 = 8,271.40 : x
  2. Step 2: Convert to fraction form
    29,047.90/43,570.94 = 8,271.40/x
  3. Step 3: Cross multiply
    29,047.90x = 43,570.94 × 8,271.40
  4. Step 4: Simplify right side
    29,047.90x = 360,392,673.12
  5. Step 5: Solve for x
    x = 360,392,673.12/29,047.90
  6. Step 6: Final answer
    x = 12,406.84

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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.