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Finding the Fourth Proportional to 65,392.58, 90,238.68 and 36,322.83

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Solution

The fourth proportional to 65,392.58, 90,238.68 and 36,322.83 is: 50,123.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,392.58 : 90,238.68 = 36,322.83 : x
  2. Step 2: Convert to fraction form
    65,392.58/90,238.68 = 36,322.83/x
  3. Step 3: Cross multiply
    65,392.58x = 90,238.68 × 36,322.83
  4. Step 4: Simplify right side
    65,392.58x = 3,277,724,233.06
  5. Step 5: Solve for x
    x = 3,277,724,233.06/65,392.58
  6. Step 6: Final answer
    x = 50,123.80

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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.