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Finding the Fourth Proportional to 50,509.79, 69,698.75 and 29,286.75

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Solution

The fourth proportional to 50,509.79, 69,698.75 and 29,286.75 is: 40,412.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,509.79 : 69,698.75 = 29,286.75 : x
  2. Step 2: Convert to fraction form
    50,509.79/69,698.75 = 29,286.75/x
  3. Step 3: Cross multiply
    50,509.79x = 69,698.75 × 29,286.75
  4. Step 4: Simplify right side
    50,509.79x = 2,041,249,720.13
  5. Step 5: Solve for x
    x = 2,041,249,720.13/50,509.79
  6. Step 6: Final answer
    x = 40,412.96

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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.