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Finding the Fourth Proportional to 14,293.69, 19,725.30 and 8,704.69

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Solution

The fourth proportional to 14,293.69, 19,725.30 and 8,704.69 is: 12,012.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,293.69 : 19,725.30 = 8,704.69 : x
  2. Step 2: Convert to fraction form
    14,293.69/19,725.30 = 8,704.69/x
  3. Step 3: Cross multiply
    14,293.69x = 19,725.30 × 8,704.69
  4. Step 4: Simplify right side
    14,293.69x = 171,702,572.34
  5. Step 5: Solve for x
    x = 171,702,572.34/14,293.69
  6. Step 6: Final answer
    x = 12,012.48

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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.