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Finding the Fourth Proportional to 13,395.92, 20,097.20 and 4,035.72

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Solution

The fourth proportional to 13,395.92, 20,097.20 and 4,035.72 is: 6,054.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,395.92 : 20,097.20 = 4,035.72 : x
  2. Step 2: Convert to fraction form
    13,395.92/20,097.20 = 4,035.72/x
  3. Step 3: Cross multiply
    13,395.92x = 20,097.20 × 4,035.72
  4. Step 4: Simplify right side
    13,395.92x = 81,106,682.07
  5. Step 5: Solve for x
    x = 81,106,682.07/13,395.92
  6. Step 6: Final answer
    x = 6,054.58

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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.