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Finding the Fourth Proportional to 13,213,158.30, 18,517,317.30 and 13,213,158.30

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Solution

The fourth proportional to 13,213,158.30, 18,517,317.30 and 13,213,158.30 is: 18,517,317.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,213,158.30 : 18,517,317.30 = 13,213,158.30 : x
  2. Step 2: Convert to fraction form
    13,213,158.30/18,517,317.30 = 13,213,158.30/x
  3. Step 3: Cross multiply
    13,213,158.30x = 18,517,317.30 × 13,213,158.30
  4. Step 4: Simplify right side
    13,213,158.30x = 244,672,244,776,228.62
  5. Step 5: Solve for x
    x = 244,672,244,776,228.62/13,213,158.30
  6. Step 6: Final answer
    x = 18,517,317.30

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.