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Finding the Fourth Proportional to 14,326.70, 19,769.86 and 7,952.79

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Solution

The fourth proportional to 14,326.70, 19,769.86 and 7,952.79 is: 10,974.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,326.70 : 19,769.86 = 7,952.79 : x
  2. Step 2: Convert to fraction form
    14,326.70/19,769.86 = 7,952.79/x
  3. Step 3: Cross multiply
    14,326.70x = 19,769.86 × 7,952.79
  4. Step 4: Simplify right side
    14,326.70x = 157,225,505.15
  5. Step 5: Solve for x
    x = 157,225,505.15/14,326.70
  6. Step 6: Final answer
    x = 10,974.30

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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.