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Finding the Fourth Proportional to 15,962.61, 22,029.09 and 8,889.03

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Solution

The fourth proportional to 15,962.61, 22,029.09 and 8,889.03 is: 12,267.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,962.61 : 22,029.09 = 8,889.03 : x
  2. Step 2: Convert to fraction form
    15,962.61/22,029.09 = 8,889.03/x
  3. Step 3: Cross multiply
    15,962.61x = 22,029.09 × 8,889.03
  4. Step 4: Simplify right side
    15,962.61x = 195,817,241.88
  5. Step 5: Solve for x
    x = 195,817,241.88/15,962.61
  6. Step 6: Final answer
    x = 12,267.24

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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.