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Finding the Fourth Proportional to 14,011.50, 21,020.13 and 5,803.50

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Solution

The fourth proportional to 14,011.50, 21,020.13 and 5,803.50 is: 8,706.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,011.50 : 21,020.13 = 5,803.50 : x
  2. Step 2: Convert to fraction form
    14,011.50/21,020.13 = 5,803.50/x
  3. Step 3: Cross multiply
    14,011.50x = 21,020.13 × 5,803.50
  4. Step 4: Simplify right side
    14,011.50x = 121,990,324.46
  5. Step 5: Solve for x
    x = 121,990,324.46/14,011.50
  6. Step 6: Final answer
    x = 8,706.44

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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.