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Finding the Fourth Proportional to 71,056.20, 106,510.86 and 26,651.64

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Solution

The fourth proportional to 71,056.20, 106,510.86 and 26,651.64 is: 39,949.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,056.20 : 106,510.86 = 26,651.64 : x
  2. Step 2: Convert to fraction form
    71,056.20/106,510.86 = 26,651.64/x
  3. Step 3: Cross multiply
    71,056.20x = 106,510.86 × 26,651.64
  4. Step 4: Simplify right side
    71,056.20x = 2,838,689,096.81
  5. Step 5: Solve for x
    x = 2,838,689,096.81/71,056.20
  6. Step 6: Final answer
    x = 39,949.91

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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.