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Finding the Fourth Proportional to 14,192.94, 19,587.16 and 7,905.36

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Solution

The fourth proportional to 14,192.94, 19,587.16 and 7,905.36 is: 10,909.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,192.94 : 19,587.16 = 7,905.36 : x
  2. Step 2: Convert to fraction form
    14,192.94/19,587.16 = 7,905.36/x
  3. Step 3: Cross multiply
    14,192.94x = 19,587.16 × 7,905.36
  4. Step 4: Simplify right side
    14,192.94x = 154,843,551.18
  5. Step 5: Solve for x
    x = 154,843,551.18/14,192.94
  6. Step 6: Final answer
    x = 10,909.90

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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.