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Finding the Fourth Proportional to 14,263.40, 19,683.54 and 7,975.64

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Solution

The fourth proportional to 14,263.40, 19,683.54 and 7,975.64 is: 11,006.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,263.40 : 19,683.54 = 7,975.64 : x
  2. Step 2: Convert to fraction form
    14,263.40/19,683.54 = 7,975.64/x
  3. Step 3: Cross multiply
    14,263.40x = 19,683.54 × 7,975.64
  4. Step 4: Simplify right side
    14,263.40x = 156,988,828.97
  5. Step 5: Solve for x
    x = 156,988,828.97/14,263.40
  6. Step 6: Final answer
    x = 11,006.41

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.