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Finding the Fourth Proportional to 69,305.34, 103,973.62 and 21,923.30

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Solution

The fourth proportional to 69,305.34, 103,973.62 and 21,923.30 is: 32,889.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,305.34 : 103,973.62 = 21,923.30 : x
  2. Step 2: Convert to fraction form
    69,305.34/103,973.62 = 21,923.30/x
  3. Step 3: Cross multiply
    69,305.34x = 103,973.62 × 21,923.30
  4. Step 4: Simplify right side
    69,305.34x = 2,279,444,863.35
  5. Step 5: Solve for x
    x = 2,279,444,863.35/69,305.34
  6. Step 6: Final answer
    x = 32,889.89

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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.