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Finding the Fourth Proportional to 64,667.88, 89,241.68 and 36,374.16

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Solution

The fourth proportional to 64,667.88, 89,241.68 and 36,374.16 is: 50,196.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,667.88 : 89,241.68 = 36,374.16 : x
  2. Step 2: Convert to fraction form
    64,667.88/89,241.68 = 36,374.16/x
  3. Step 3: Cross multiply
    64,667.88x = 89,241.68 × 36,374.16
  4. Step 4: Simplify right side
    64,667.88x = 3,246,091,146.99
  5. Step 5: Solve for x
    x = 3,246,091,146.99/64,667.88
  6. Step 6: Final answer
    x = 50,196.34

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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.