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Finding the Fourth Proportional to 14,233.12, 19,641.36 and 7,945.48

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Solution

The fourth proportional to 14,233.12, 19,641.36 and 7,945.48 is: 10,964.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,233.12 : 19,641.36 = 7,945.48 : x
  2. Step 2: Convert to fraction form
    14,233.12/19,641.36 = 7,945.48/x
  3. Step 3: Cross multiply
    14,233.12x = 19,641.36 × 7,945.48
  4. Step 4: Simplify right side
    14,233.12x = 156,060,033.05
  5. Step 5: Solve for x
    x = 156,060,033.05/14,233.12
  6. Step 6: Final answer
    x = 10,964.57

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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.