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Finding the Fourth Proportional to 45,755.80, 68,606.57 and 14,156.51

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Solution

The fourth proportional to 45,755.80, 68,606.57 and 14,156.51 is: 21,226.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,755.80 : 68,606.57 = 14,156.51 : x
  2. Step 2: Convert to fraction form
    45,755.80/68,606.57 = 14,156.51/x
  3. Step 3: Cross multiply
    45,755.80x = 68,606.57 × 14,156.51
  4. Step 4: Simplify right side
    45,755.80x = 971,229,286.63
  5. Step 5: Solve for x
    x = 971,229,286.63/45,755.80
  6. Step 6: Final answer
    x = 21,226.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.