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Finding the Fourth Proportional to 53,953.40, 80,857.20 and 36,133.40

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Solution

The fourth proportional to 53,953.40, 80,857.20 and 36,133.40 is: 54,151.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,953.40 : 80,857.20 = 36,133.40 : x
  2. Step 2: Convert to fraction form
    53,953.40/80,857.20 = 36,133.40/x
  3. Step 3: Cross multiply
    53,953.40x = 80,857.20 × 36,133.40
  4. Step 4: Simplify right side
    53,953.40x = 2,921,645,550.48
  5. Step 5: Solve for x
    x = 2,921,645,550.48/53,953.40
  6. Step 6: Final answer
    x = 54,151.28

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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.