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Finding the Fourth Proportional to 12,239.61, 16,897.65 and 8,060.01

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Solution

The fourth proportional to 12,239.61, 16,897.65 and 8,060.01 is: 11,127.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,239.61 : 16,897.65 = 8,060.01 : x
  2. Step 2: Convert to fraction form
    12,239.61/16,897.65 = 8,060.01/x
  3. Step 3: Cross multiply
    12,239.61x = 16,897.65 × 8,060.01
  4. Step 4: Simplify right side
    12,239.61x = 136,195,227.98
  5. Step 5: Solve for x
    x = 136,195,227.98/12,239.61
  6. Step 6: Final answer
    x = 11,127.42

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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.