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Finding the Fourth Proportional to 12,041.36, 18,057 and 4,246.64

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Solution

The fourth proportional to 12,041.36, 18,057 and 4,246.64 is: 6,368.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,041.36 : 18,057 = 4,246.64 : x
  2. Step 2: Convert to fraction form
    12,041.36/18,057 = 4,246.64/x
  3. Step 3: Cross multiply
    12,041.36x = 18,057 × 4,246.64
  4. Step 4: Simplify right side
    12,041.36x = 76,681,578.48
  5. Step 5: Solve for x
    x = 76,681,578.48/12,041.36
  6. Step 6: Final answer
    x = 6,368.18

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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.