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Finding the Fourth Proportional to 50,798.70, 70,096.86 and 28,137.08

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Solution

The fourth proportional to 50,798.70, 70,096.86 and 28,137.08 is: 38,826.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,798.70 : 70,096.86 = 28,137.08 : x
  2. Step 2: Convert to fraction form
    50,798.70/70,096.86 = 28,137.08/x
  3. Step 3: Cross multiply
    50,798.70x = 70,096.86 × 28,137.08
  4. Step 4: Simplify right side
    50,798.70x = 1,972,321,132.81
  5. Step 5: Solve for x
    x = 1,972,321,132.81/50,798.70
  6. Step 6: Final answer
    x = 38,826.21

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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.