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Finding the Fourth Proportional to 14,913.78, 20,581.53 and 8,200.02

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Solution

The fourth proportional to 14,913.78, 20,581.53 and 8,200.02 is: 11,316.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,913.78 : 20,581.53 = 8,200.02 : x
  2. Step 2: Convert to fraction form
    14,913.78/20,581.53 = 8,200.02/x
  3. Step 3: Cross multiply
    14,913.78x = 20,581.53 × 8,200.02
  4. Step 4: Simplify right side
    14,913.78x = 168,768,957.63
  5. Step 5: Solve for x
    x = 168,768,957.63/14,913.78
  6. Step 6: Final answer
    x = 11,316.31

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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.