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Finding the Fourth Proportional to 12,671.16, 19,004.82 and 4,878.84

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Solution

The fourth proportional to 12,671.16, 19,004.82 and 4,878.84 is: 7,317.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,671.16 : 19,004.82 = 4,878.84 : x
  2. Step 2: Convert to fraction form
    12,671.16/19,004.82 = 4,878.84/x
  3. Step 3: Cross multiply
    12,671.16x = 19,004.82 × 4,878.84
  4. Step 4: Simplify right side
    12,671.16x = 92,721,476.01
  5. Step 5: Solve for x
    x = 92,721,476.01/12,671.16
  6. Step 6: Final answer
    x = 7,317.52

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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.