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Finding the Fourth Proportional to 50,508.84, 69,704.58 and 28,153

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Solution

The fourth proportional to 50,508.84, 69,704.58 and 28,153 is: 38,852.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,508.84 : 69,704.58 = 28,153 : x
  2. Step 2: Convert to fraction form
    50,508.84/69,704.58 = 28,153/x
  3. Step 3: Cross multiply
    50,508.84x = 69,704.58 × 28,153
  4. Step 4: Simplify right side
    50,508.84x = 1,962,393,040.74
  5. Step 5: Solve for x
    x = 1,962,393,040.74/50,508.84
  6. Step 6: Final answer
    x = 38,852.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.