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Finding the Fourth Proportional to 14,325.18, 19,768.91 and 7,951.90

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Solution

The fourth proportional to 14,325.18, 19,768.91 and 7,951.90 is: 10,973.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,325.18 : 19,768.91 = 7,951.90 : x
  2. Step 2: Convert to fraction form
    14,325.18/19,768.91 = 7,951.90/x
  3. Step 3: Cross multiply
    14,325.18x = 19,768.91 × 7,951.90
  4. Step 4: Simplify right side
    14,325.18x = 157,200,395.43
  5. Step 5: Solve for x
    x = 157,200,395.43/14,325.18
  6. Step 6: Final answer
    x = 10,973.71

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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.