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Finding the Fourth Proportional to 64,642.97, 89,196.42 and 35,958.84

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Solution

The fourth proportional to 64,642.97, 89,196.42 and 35,958.84 is: 49,617.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,642.97 : 89,196.42 = 35,958.84 : x
  2. Step 2: Convert to fraction form
    64,642.97/89,196.42 = 35,958.84/x
  3. Step 3: Cross multiply
    64,642.97x = 89,196.42 × 35,958.84
  4. Step 4: Simplify right side
    64,642.97x = 3,207,399,660.51
  5. Step 5: Solve for x
    x = 3,207,399,660.51/64,642.97
  6. Step 6: Final answer
    x = 49,617.15

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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.