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Finding the Fourth Proportional to 13,102.31, 18,060.11 and 8,852.03

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Solution

The fourth proportional to 13,102.31, 18,060.11 and 8,852.03 is: 12,201.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,102.31 : 18,060.11 = 8,852.03 : x
  2. Step 2: Convert to fraction form
    13,102.31/18,060.11 = 8,852.03/x
  3. Step 3: Cross multiply
    13,102.31x = 18,060.11 × 8,852.03
  4. Step 4: Simplify right side
    13,102.31x = 159,868,753.26
  5. Step 5: Solve for x
    x = 159,868,753.26/13,102.31
  6. Step 6: Final answer
    x = 12,201.57

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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.