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Finding the Fourth Proportional to 14,706.55, 22,065.29 and 6,812.90

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Solution

The fourth proportional to 14,706.55, 22,065.29 and 6,812.90 is: 10,221.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,706.55 : 22,065.29 = 6,812.90 : x
  2. Step 2: Convert to fraction form
    14,706.55/22,065.29 = 6,812.90/x
  3. Step 3: Cross multiply
    14,706.55x = 22,065.29 × 6,812.90
  4. Step 4: Simplify right side
    14,706.55x = 150,328,614.24
  5. Step 5: Solve for x
    x = 150,328,614.24/14,706.55
  6. Step 6: Final answer
    x = 10,221.88

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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.