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Finding the Fourth Proportional to 53,472.90, 80,190.45 and 18,404.40

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Solution

The fourth proportional to 53,472.90, 80,190.45 and 18,404.40 is: 27,600.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,472.90 : 80,190.45 = 18,404.40 : x
  2. Step 2: Convert to fraction form
    53,472.90/80,190.45 = 18,404.40/x
  3. Step 3: Cross multiply
    53,472.90x = 80,190.45 × 18,404.40
  4. Step 4: Simplify right side
    53,472.90x = 1,475,857,117.98
  5. Step 5: Solve for x
    x = 1,475,857,117.98/53,472.90
  6. Step 6: Final answer
    x = 27,600.09

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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.