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Finding the Fourth Proportional to 46,290.30, 69,435.44 and 13,013.72

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Solution

The fourth proportional to 46,290.30, 69,435.44 and 13,013.72 is: 19,520.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,290.30 : 69,435.44 = 13,013.72 : x
  2. Step 2: Convert to fraction form
    46,290.30/69,435.44 = 13,013.72/x
  3. Step 3: Cross multiply
    46,290.30x = 69,435.44 × 13,013.72
  4. Step 4: Simplify right side
    46,290.30x = 903,613,374.24
  5. Step 5: Solve for x
    x = 903,613,374.24/46,290.30
  6. Step 6: Final answer
    x = 19,520.58

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.