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Finding the Fourth Proportional to 66,641.51, 99,967.43 and 22,268.42

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Solution

The fourth proportional to 66,641.51, 99,967.43 and 22,268.42 is: 33,404.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,641.51 : 99,967.43 = 22,268.42 : x
  2. Step 2: Convert to fraction form
    66,641.51/99,967.43 = 22,268.42/x
  3. Step 3: Cross multiply
    66,641.51x = 99,967.43 × 22,268.42
  4. Step 4: Simplify right side
    66,641.51x = 2,226,116,523.01
  5. Step 5: Solve for x
    x = 2,226,116,523.01/66,641.51
  6. Step 6: Final answer
    x = 33,404.35

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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.