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Finding the Fourth Proportional to 18,069.40, 27,068.10 and 15,904.60

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Solution

The fourth proportional to 18,069.40, 27,068.10 and 15,904.60 is: 23,825.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,069.40 : 27,068.10 = 15,904.60 : x
  2. Step 2: Convert to fraction form
    18,069.40/27,068.10 = 15,904.60/x
  3. Step 3: Cross multiply
    18,069.40x = 27,068.10 × 15,904.60
  4. Step 4: Simplify right side
    18,069.40x = 430,507,303.26
  5. Step 5: Solve for x
    x = 430,507,303.26/18,069.40
  6. Step 6: Final answer
    x = 23,825.21

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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.