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Finding the Fourth Proportional to 14,338.54, 19,787.41 and 7,965.54

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Solution

The fourth proportional to 14,338.54, 19,787.41 and 7,965.54 is: 10,992.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,338.54 : 19,787.41 = 7,965.54 : x
  2. Step 2: Convert to fraction form
    14,338.54/19,787.41 = 7,965.54/x
  3. Step 3: Cross multiply
    14,338.54x = 19,787.41 × 7,965.54
  4. Step 4: Simplify right side
    14,338.54x = 157,617,415.81
  5. Step 5: Solve for x
    x = 157,617,415.81/14,338.54
  6. Step 6: Final answer
    x = 10,992.57

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1.5x scale

Why These Related Problems?

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