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Finding the Fourth Proportional to 69,267.89, 103,900.32 and 19,346.88

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Solution

The fourth proportional to 69,267.89, 103,900.32 and 19,346.88 is: 29,019.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,267.89 : 103,900.32 = 19,346.88 : x
  2. Step 2: Convert to fraction form
    69,267.89/103,900.32 = 19,346.88/x
  3. Step 3: Cross multiply
    69,267.89x = 103,900.32 × 19,346.88
  4. Step 4: Simplify right side
    69,267.89x = 2,010,147,412.63
  5. Step 5: Solve for x
    x = 2,010,147,412.63/69,267.89
  6. Step 6: Final answer
    x = 29,019.90

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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.