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Finding the Fourth Proportional to 63,123.96, 94,674.72 and 20,999.88

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Solution

The fourth proportional to 63,123.96, 94,674.72 and 20,999.88 is: 31,496.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,123.96 : 94,674.72 = 20,999.88 : x
  2. Step 2: Convert to fraction form
    63,123.96/94,674.72 = 20,999.88/x
  3. Step 3: Cross multiply
    63,123.96x = 94,674.72 × 20,999.88
  4. Step 4: Simplify right side
    63,123.96x = 1,988,157,759.03
  5. Step 5: Solve for x
    x = 1,988,157,759.03/63,123.96
  6. Step 6: Final answer
    x = 31,496.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.