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Finding the Fourth Proportional to 58,661.91, 80,932.21 and 38,529.70

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Solution

The fourth proportional to 58,661.91, 80,932.21 and 38,529.70 is: 53,157.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,661.91 : 80,932.21 = 38,529.70 : x
  2. Step 2: Convert to fraction form
    58,661.91/80,932.21 = 38,529.70/x
  3. Step 3: Cross multiply
    58,661.91x = 80,932.21 × 38,529.70
  4. Step 4: Simplify right side
    58,661.91x = 3,118,293,771.64
  5. Step 5: Solve for x
    x = 3,118,293,771.64/58,661.91
  6. Step 6: Final answer
    x = 53,157.04

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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.