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Finding the Fourth Proportional to 50,838.98, 70,161.98 and 28,185.07

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Solution

The fourth proportional to 50,838.98, 70,161.98 and 28,185.07 is: 38,897.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,838.98 : 70,161.98 = 28,185.07 : x
  2. Step 2: Convert to fraction form
    50,838.98/70,161.98 = 28,185.07/x
  3. Step 3: Cross multiply
    50,838.98x = 70,161.98 × 28,185.07
  4. Step 4: Simplify right side
    50,838.98x = 1,977,520,475.80
  5. Step 5: Solve for x
    x = 1,977,520,475.80/50,838.98
  6. Step 6: Final answer
    x = 38,897.73

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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.