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Finding the Fourth Proportional to 14,693.65, 20,277.39 and 7,979.34

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Solution

The fourth proportional to 14,693.65, 20,277.39 and 7,979.34 is: 11,011.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,693.65 : 20,277.39 = 7,979.34 : x
  2. Step 2: Convert to fraction form
    14,693.65/20,277.39 = 7,979.34/x
  3. Step 3: Cross multiply
    14,693.65x = 20,277.39 × 7,979.34
  4. Step 4: Simplify right side
    14,693.65x = 161,800,118.48
  5. Step 5: Solve for x
    x = 161,800,118.48/14,693.65
  6. Step 6: Final answer
    x = 11,011.57

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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.