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Finding the Fourth Proportional to 19,234.70, 28,864.95 and 6,754.70

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Solution

The fourth proportional to 19,234.70, 28,864.95 and 6,754.70 is: 10,136.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,234.70 : 28,864.95 = 6,754.70 : x
  2. Step 2: Convert to fraction form
    19,234.70/28,864.95 = 6,754.70/x
  3. Step 3: Cross multiply
    19,234.70x = 28,864.95 × 6,754.70
  4. Step 4: Simplify right side
    19,234.70x = 194,974,077.77
  5. Step 5: Solve for x
    x = 194,974,077.77/19,234.70
  6. Step 6: Final answer
    x = 10,136.58

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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.