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Finding the Fourth Proportional to 14,416.96, 19,895.41 and 8,129.34

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Solution

The fourth proportional to 14,416.96, 19,895.41 and 8,129.34 is: 11,218.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,416.96 : 19,895.41 = 8,129.34 : x
  2. Step 2: Convert to fraction form
    14,416.96/19,895.41 = 8,129.34/x
  3. Step 3: Cross multiply
    14,416.96x = 19,895.41 × 8,129.34
  4. Step 4: Simplify right side
    14,416.96x = 161,736,432.53
  5. Step 5: Solve for x
    x = 161,736,432.53/14,416.96
  6. Step 6: Final answer
    x = 11,218.48

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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.