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Finding the Fourth Proportional to 50,958.70, 70,320.63 and 28,299.14

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Solution

The fourth proportional to 50,958.70, 70,320.63 and 28,299.14 is: 39,051.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,958.70 : 70,320.63 = 28,299.14 : x
  2. Step 2: Convert to fraction form
    50,958.70/70,320.63 = 28,299.14/x
  3. Step 3: Cross multiply
    50,958.70x = 70,320.63 × 28,299.14
  4. Step 4: Simplify right side
    50,958.70x = 1,990,013,371.48
  5. Step 5: Solve for x
    x = 1,990,013,371.48/50,958.70
  6. Step 6: Final answer
    x = 39,051.50

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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.