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Finding the Fourth Proportional to 53,847.72, 80,784.60 and 16,911.72

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Solution

The fourth proportional to 53,847.72, 80,784.60 and 16,911.72 is: 25,371.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,847.72 : 80,784.60 = 16,911.72 : x
  2. Step 2: Convert to fraction form
    53,847.72/80,784.60 = 16,911.72/x
  3. Step 3: Cross multiply
    53,847.72x = 80,784.60 × 16,911.72
  4. Step 4: Simplify right side
    53,847.72x = 1,366,206,535.51
  5. Step 5: Solve for x
    x = 1,366,206,535.51/53,847.72
  6. Step 6: Final answer
    x = 25,371.67

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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.