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Finding the Fourth Proportional to 50,897.46, 70,238.90 and 28,237.92

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Solution

The fourth proportional to 50,897.46, 70,238.90 and 28,237.92 is: 38,968.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,897.46 : 70,238.90 = 28,237.92 : x
  2. Step 2: Convert to fraction form
    50,897.46/70,238.90 = 28,237.92/x
  3. Step 3: Cross multiply
    50,897.46x = 70,238.90 × 28,237.92
  4. Step 4: Simplify right side
    50,897.46x = 1,983,400,439.09
  5. Step 5: Solve for x
    x = 1,983,400,439.09/50,897.46
  6. Step 6: Final answer
    x = 38,968.55

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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.