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Finding the Fourth Proportional to 66,538.04, 99,808.88 and 22,163.20

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Solution

The fourth proportional to 66,538.04, 99,808.88 and 22,163.20 is: 33,245.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,538.04 : 99,808.88 = 22,163.20 : x
  2. Step 2: Convert to fraction form
    66,538.04/99,808.88 = 22,163.20/x
  3. Step 3: Cross multiply
    66,538.04x = 99,808.88 × 22,163.20
  4. Step 4: Simplify right side
    66,538.04x = 2,212,083,808.88
  5. Step 5: Solve for x
    x = 2,212,083,808.88/66,538.04
  6. Step 6: Final answer
    x = 33,245.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.