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Finding the Fourth Proportional to 50,756.50, 70,042.21 and 28,096.48

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Solution

The fourth proportional to 50,756.50, 70,042.21 and 28,096.48 is: 38,772.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,756.50 : 70,042.21 = 28,096.48 : x
  2. Step 2: Convert to fraction form
    50,756.50/70,042.21 = 28,096.48/x
  3. Step 3: Cross multiply
    50,756.50x = 70,042.21 × 28,096.48
  4. Step 4: Simplify right side
    50,756.50x = 1,967,939,552.42
  5. Step 5: Solve for x
    x = 1,967,939,552.42/50,756.50
  6. Step 6: Final answer
    x = 38,772.17

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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.