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Finding the Fourth Proportional to 71,205.72, 106,724.72 and 29,059.50

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Solution

The fourth proportional to 71,205.72, 106,724.72 and 29,059.50 is: 43,555.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,205.72 : 106,724.72 = 29,059.50 : x
  2. Step 2: Convert to fraction form
    71,205.72/106,724.72 = 29,059.50/x
  3. Step 3: Cross multiply
    71,205.72x = 106,724.72 × 29,059.50
  4. Step 4: Simplify right side
    71,205.72x = 3,101,367,000.84
  5. Step 5: Solve for x
    x = 3,101,367,000.84/71,205.72
  6. Step 6: Final answer
    x = 43,555.03

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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.