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Finding the Fourth Proportional to 14,273.56, 19,696.98 and 7,985.98

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Solution

The fourth proportional to 14,273.56, 19,696.98 and 7,985.98 is: 11,020.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,273.56 : 19,696.98 = 7,985.98 : x
  2. Step 2: Convert to fraction form
    14,273.56/19,696.98 = 7,985.98/x
  3. Step 3: Cross multiply
    14,273.56x = 19,696.98 × 7,985.98
  4. Step 4: Simplify right side
    14,273.56x = 157,299,688.34
  5. Step 5: Solve for x
    x = 157,299,688.34/14,273.56
  6. Step 6: Final answer
    x = 11,020.35

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Why These Related Problems?

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