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Finding the Fourth Proportional to 74,928.50, 112,392.75 and 19,524.50

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Solution

The fourth proportional to 74,928.50, 112,392.75 and 19,524.50 is: 29,286.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,928.50 : 112,392.75 = 19,524.50 : x
  2. Step 2: Convert to fraction form
    74,928.50/112,392.75 = 19,524.50/x
  3. Step 3: Cross multiply
    74,928.50x = 112,392.75 × 19,524.50
  4. Step 4: Simplify right side
    74,928.50x = 2,194,412,247.38
  5. Step 5: Solve for x
    x = 2,194,412,247.38/74,928.50
  6. Step 6: Final answer
    x = 29,286.75

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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.