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Finding the Fourth Proportional to 64,287.81, 88,718.36 and 35,993.43

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Solution

The fourth proportional to 64,287.81, 88,718.36 and 35,993.43 is: 49,671.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,287.81 : 88,718.36 = 35,993.43 : x
  2. Step 2: Convert to fraction form
    64,287.81/88,718.36 = 35,993.43/x
  3. Step 3: Cross multiply
    64,287.81x = 88,718.36 × 35,993.43
  4. Step 4: Simplify right side
    64,287.81x = 3,193,277,900.41
  5. Step 5: Solve for x
    x = 3,193,277,900.41/64,287.81
  6. Step 6: Final answer
    x = 49,671.59

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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.