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Finding the Fourth Proportional to 9,942.81, 14,913.81 and 3,368.99

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Solution

The fourth proportional to 9,942.81, 14,913.81 and 3,368.99 is: 5,053.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,942.81 : 14,913.81 = 3,368.99 : x
  2. Step 2: Convert to fraction form
    9,942.81/14,913.81 = 3,368.99/x
  3. Step 3: Cross multiply
    9,942.81x = 14,913.81 × 3,368.99
  4. Step 4: Simplify right side
    9,942.81x = 50,244,402.18
  5. Step 5: Solve for x
    x = 50,244,402.18/9,942.81
  6. Step 6: Final answer
    x = 5,053.34

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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.