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Finding the Fourth Proportional to 14,918.70, 22,369.53 and 6,143.16

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Solution

The fourth proportional to 14,918.70, 22,369.53 and 6,143.16 is: 9,211.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,918.70 : 22,369.53 = 6,143.16 : x
  2. Step 2: Convert to fraction form
    14,918.70/22,369.53 = 6,143.16/x
  3. Step 3: Cross multiply
    14,918.70x = 22,369.53 × 6,143.16
  4. Step 4: Simplify right side
    14,918.70x = 137,419,601.91
  5. Step 5: Solve for x
    x = 137,419,601.91/14,918.70
  6. Step 6: Final answer
    x = 9,211.23

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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.