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Finding the Fourth Proportional to 12,897.37, 17,807.06 and 8,059.44

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Solution

The fourth proportional to 12,897.37, 17,807.06 and 8,059.44 is: 11,127.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,897.37 : 17,807.06 = 8,059.44 : x
  2. Step 2: Convert to fraction form
    12,897.37/17,807.06 = 8,059.44/x
  3. Step 3: Cross multiply
    12,897.37x = 17,807.06 × 8,059.44
  4. Step 4: Simplify right side
    12,897.37x = 143,514,935.87
  5. Step 5: Solve for x
    x = 143,514,935.87/12,897.37
  6. Step 6: Final answer
    x = 11,127.46

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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.