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Finding the Fourth Proportional to 14,538.94, 20,063.74 and 7,914.94

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Solution

The fourth proportional to 14,538.94, 20,063.74 and 7,914.94 is: 10,922.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,538.94 : 20,063.74 = 7,914.94 : x
  2. Step 2: Convert to fraction form
    14,538.94/20,063.74 = 7,914.94/x
  3. Step 3: Cross multiply
    14,538.94x = 20,063.74 × 7,914.94
  4. Step 4: Simplify right side
    14,538.94x = 158,803,228.33
  5. Step 5: Solve for x
    x = 158,803,228.33/14,538.94
  6. Step 6: Final answer
    x = 10,922.62

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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.