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Finding the Fourth Proportional to 13,800.68, 20,701.08 and 5,035.58

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Solution

The fourth proportional to 13,800.68, 20,701.08 and 5,035.58 is: 7,553.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,800.68 : 20,701.08 = 5,035.58 : x
  2. Step 2: Convert to fraction form
    13,800.68/20,701.08 = 5,035.58/x
  3. Step 3: Cross multiply
    13,800.68x = 20,701.08 × 5,035.58
  4. Step 4: Simplify right side
    13,800.68x = 104,241,840.92
  5. Step 5: Solve for x
    x = 104,241,840.92/13,800.68
  6. Step 6: Final answer
    x = 7,553.39

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1.5x scale

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.