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Finding the Fourth Proportional to 50,898.98, 70,240.68 and 28,237.97

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Solution

The fourth proportional to 50,898.98, 70,240.68 and 28,237.97 is: 38,968.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,898.98 : 70,240.68 = 28,237.97 : x
  2. Step 2: Convert to fraction form
    50,898.98/70,240.68 = 28,237.97/x
  3. Step 3: Cross multiply
    50,898.98x = 70,240.68 × 28,237.97
  4. Step 4: Simplify right side
    50,898.98x = 1,983,453,863.42
  5. Step 5: Solve for x
    x = 1,983,453,863.42/50,898.98
  6. Step 6: Final answer
    x = 38,968.44

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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.