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Finding the Fourth Proportional to 13,029.63, 17,995.73 and 8,830.59

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Solution

The fourth proportional to 13,029.63, 17,995.73 and 8,830.59 is: 12,196.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,029.63 : 17,995.73 = 8,830.59 : x
  2. Step 2: Convert to fraction form
    13,029.63/17,995.73 = 8,830.59/x
  3. Step 3: Cross multiply
    13,029.63x = 17,995.73 × 8,830.59
  4. Step 4: Simplify right side
    13,029.63x = 158,912,913.38
  5. Step 5: Solve for x
    x = 158,912,913.38/13,029.63
  6. Step 6: Final answer
    x = 12,196.27

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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.