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Finding the Fourth Proportional to 16,838.70, 25,237.80 and 6,972.90

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Solution

The fourth proportional to 16,838.70, 25,237.80 and 6,972.90 is: 10,450.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,838.70 : 25,237.80 = 6,972.90 : x
  2. Step 2: Convert to fraction form
    16,838.70/25,237.80 = 6,972.90/x
  3. Step 3: Cross multiply
    16,838.70x = 25,237.80 × 6,972.90
  4. Step 4: Simplify right side
    16,838.70x = 175,980,655.62
  5. Step 5: Solve for x
    x = 175,980,655.62/16,838.70
  6. Step 6: Final answer
    x = 10,450.96

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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.