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Finding the Fourth Proportional to 14,126.52, 19,494.48 and 7,838.90

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Solution

The fourth proportional to 14,126.52, 19,494.48 and 7,838.90 is: 10,817.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,126.52 : 19,494.48 = 7,838.90 : x
  2. Step 2: Convert to fraction form
    14,126.52/19,494.48 = 7,838.90/x
  3. Step 3: Cross multiply
    14,126.52x = 19,494.48 × 7,838.90
  4. Step 4: Simplify right side
    14,126.52x = 152,815,181.80
  5. Step 5: Solve for x
    x = 152,815,181.80/14,126.52
  6. Step 6: Final answer
    x = 10,817.61

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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.