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Finding the Fourth Proportional to 13,970.00, 20,948.02 and 4,481.06

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Solution

The fourth proportional to 13,970.00, 20,948.02 and 4,481.06 is: 6,719.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,970.00 : 20,948.02 = 4,481.06 : x
  2. Step 2: Convert to fraction form
    13,970.00/20,948.02 = 4,481.06/x
  3. Step 3: Cross multiply
    13,970.00x = 20,948.02 × 4,481.06
  4. Step 4: Simplify right side
    13,970.00x = 93,869,218.56
  5. Step 5: Solve for x
    x = 93,869,218.56/13,970.00
  6. Step 6: Final answer
    x = 6,719.34

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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.