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Finding the Fourth Proportional to 53,674.40, 80,414.40 and 45,898.40

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Solution

The fourth proportional to 53,674.40, 80,414.40 and 45,898.40 is: 68,764.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,674.40 : 80,414.40 = 45,898.40 : x
  2. Step 2: Convert to fraction form
    53,674.40/80,414.40 = 45,898.40/x
  3. Step 3: Cross multiply
    53,674.40x = 80,414.40 × 45,898.40
  4. Step 4: Simplify right side
    53,674.40x = 3,690,892,296.96
  5. Step 5: Solve for x
    x = 3,690,892,296.96/53,674.40
  6. Step 6: Final answer
    x = 68,764.48

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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.