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Finding the Fourth Proportional to 50,709.52, 75,698.42 and 42,845.20

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Solution

The fourth proportional to 50,709.52, 75,698.42 and 42,845.20 is: 63,958.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,709.52 : 75,698.42 = 42,845.20 : x
  2. Step 2: Convert to fraction form
    50,709.52/75,698.42 = 42,845.20/x
  3. Step 3: Cross multiply
    50,709.52x = 75,698.42 × 42,845.20
  4. Step 4: Simplify right side
    50,709.52x = 3,243,313,944.58
  5. Step 5: Solve for x
    x = 3,243,313,944.58/50,709.52
  6. Step 6: Final answer
    x = 63,958.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.