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Finding the Fourth Proportional to 50,953.40, 76,440.90 and 15,411.80

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Solution

The fourth proportional to 50,953.40, 76,440.90 and 15,411.80 is: 23,120.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,953.40 : 76,440.90 = 15,411.80 : x
  2. Step 2: Convert to fraction form
    50,953.40/76,440.90 = 15,411.80/x
  3. Step 3: Cross multiply
    50,953.40x = 76,440.90 × 15,411.80
  4. Step 4: Simplify right side
    50,953.40x = 1,178,091,862.62
  5. Step 5: Solve for x
    x = 1,178,091,862.62/50,953.40
  6. Step 6: Final answer
    x = 23,120.97

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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.