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Finding the Fourth Proportional to 49,235.80, 73,853.70 and 28,499.80

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Solution

The fourth proportional to 49,235.80, 73,853.70 and 28,499.80 is: 42,749.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,235.80 : 73,853.70 = 28,499.80 : x
  2. Step 2: Convert to fraction form
    49,235.80/73,853.70 = 28,499.80/x
  3. Step 3: Cross multiply
    49,235.80x = 73,853.70 × 28,499.80
  4. Step 4: Simplify right side
    49,235.80x = 2,104,815,679.26
  5. Step 5: Solve for x
    x = 2,104,815,679.26/49,235.80
  6. Step 6: Final answer
    x = 42,749.70

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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.