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Finding the Fourth Proportional to 14,426.95, 19,910.19 and 8,054.79

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Solution

The fourth proportional to 14,426.95, 19,910.19 and 8,054.79 is: 11,116.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,426.95 : 19,910.19 = 8,054.79 : x
  2. Step 2: Convert to fraction form
    14,426.95/19,910.19 = 8,054.79/x
  3. Step 3: Cross multiply
    14,426.95x = 19,910.19 × 8,054.79
  4. Step 4: Simplify right side
    14,426.95x = 160,372,359.04
  5. Step 5: Solve for x
    x = 160,372,359.04/14,426.95
  6. Step 6: Final answer
    x = 11,116.17

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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.