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Finding the Fourth Proportional to 18,755.70, 25,914.06 and 14,807.04

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Solution

The fourth proportional to 18,755.70, 25,914.06 and 14,807.04 is: 20,458.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,755.70 : 25,914.06 = 14,807.04 : x
  2. Step 2: Convert to fraction form
    18,755.70/25,914.06 = 14,807.04/x
  3. Step 3: Cross multiply
    18,755.70x = 25,914.06 × 14,807.04
  4. Step 4: Simplify right side
    18,755.70x = 383,710,522.98
  5. Step 5: Solve for x
    x = 383,710,522.98/18,755.70
  6. Step 6: Final answer
    x = 20,458.34

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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.