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Finding the Fourth Proportional to 14,263.76, 19,683.99 and 7,976.15

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Solution

The fourth proportional to 14,263.76, 19,683.99 and 7,976.15 is: 11,007.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,263.76 : 19,683.99 = 7,976.15 : x
  2. Step 2: Convert to fraction form
    14,263.76/19,683.99 = 7,976.15/x
  3. Step 3: Cross multiply
    14,263.76x = 19,683.99 × 7,976.15
  4. Step 4: Simplify right side
    14,263.76x = 157,002,456.84
  5. Step 5: Solve for x
    x = 157,002,456.84/14,263.76
  6. Step 6: Final answer
    x = 11,007.09

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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.