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Finding the Fourth Proportional to 14,473.98, 19,979.02 and 8,507.42

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Solution

The fourth proportional to 14,473.98, 19,979.02 and 8,507.42 is: 11,743.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,473.98 : 19,979.02 = 8,507.42 : x
  2. Step 2: Convert to fraction form
    14,473.98/19,979.02 = 8,507.42/x
  3. Step 3: Cross multiply
    14,473.98x = 19,979.02 × 8,507.42
  4. Step 4: Simplify right side
    14,473.98x = 169,969,914.33
  5. Step 5: Solve for x
    x = 169,969,914.33/14,473.98
  6. Step 6: Final answer
    x = 11,743.14

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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.