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Finding the Fourth Proportional to 50,870.48, 70,208.46 and 28,214.48

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Solution

The fourth proportional to 50,870.48, 70,208.46 and 28,214.48 is: 38,939.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,870.48 : 70,208.46 = 28,214.48 : x
  2. Step 2: Convert to fraction form
    50,870.48/70,208.46 = 28,214.48/x
  3. Step 3: Cross multiply
    50,870.48x = 70,208.46 × 28,214.48
  4. Step 4: Simplify right side
    50,870.48x = 1,980,895,190.50
  5. Step 5: Solve for x
    x = 1,980,895,190.50/50,870.48
  6. Step 6: Final answer
    x = 38,939.97

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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.