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Finding the Fourth Proportional to 14,043.81, 21,065.71 and 9,647.94

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Solution

The fourth proportional to 14,043.81, 21,065.71 and 9,647.94 is: 14,471.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,043.81 : 21,065.71 = 9,647.94 : x
  2. Step 2: Convert to fraction form
    14,043.81/21,065.71 = 9,647.94/x
  3. Step 3: Cross multiply
    14,043.81x = 21,065.71 × 9,647.94
  4. Step 4: Simplify right side
    14,043.81x = 203,240,706.14
  5. Step 5: Solve for x
    x = 203,240,706.14/14,043.81
  6. Step 6: Final answer
    x = 14,471.91

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Similar ratio
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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.