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Finding the Fourth Proportional to 15,549.44, 21,461.44 and 8,835.52

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Solution

The fourth proportional to 15,549.44, 21,461.44 and 8,835.52 is: 12,194.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,549.44 : 21,461.44 = 8,835.52 : x
  2. Step 2: Convert to fraction form
    15,549.44/21,461.44 = 8,835.52/x
  3. Step 3: Cross multiply
    15,549.44x = 21,461.44 × 8,835.52
  4. Step 4: Simplify right side
    15,549.44x = 189,622,982.35
  5. Step 5: Solve for x
    x = 189,622,982.35/15,549.44
  6. Step 6: Final answer
    x = 12,194.84

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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.