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Finding the Fourth Proportional to 13,368.47, 20,055.47 and 4,008.11

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Solution

The fourth proportional to 13,368.47, 20,055.47 and 4,008.11 is: 6,012.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,368.47 : 20,055.47 = 4,008.11 : x
  2. Step 2: Convert to fraction form
    13,368.47/20,055.47 = 4,008.11/x
  3. Step 3: Cross multiply
    13,368.47x = 20,055.47 × 4,008.11
  4. Step 4: Simplify right side
    13,368.47x = 80,384,409.54
  5. Step 5: Solve for x
    x = 80,384,409.54/13,368.47
  6. Step 6: Final answer
    x = 6,012.99

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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.