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Finding the Fourth Proportional to 14,105.12, 19,473.90 and 9,078.06

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Solution

The fourth proportional to 14,105.12, 19,473.90 and 9,078.06 is: 12,533.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,105.12 : 19,473.90 = 9,078.06 : x
  2. Step 2: Convert to fraction form
    14,105.12/19,473.90 = 9,078.06/x
  3. Step 3: Cross multiply
    14,105.12x = 19,473.90 × 9,078.06
  4. Step 4: Simplify right side
    14,105.12x = 176,785,232.63
  5. Step 5: Solve for x
    x = 176,785,232.63/14,105.12
  6. Step 6: Final answer
    x = 12,533.41

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.