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Finding the Fourth Proportional to 50,711.01, 69,978.57 and 28,048.83

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Solution

The fourth proportional to 50,711.01, 69,978.57 and 28,048.83 is: 38,705.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,711.01 : 69,978.57 = 28,048.83 : x
  2. Step 2: Convert to fraction form
    50,711.01/69,978.57 = 28,048.83/x
  3. Step 3: Cross multiply
    50,711.01x = 69,978.57 × 28,048.83
  4. Step 4: Simplify right side
    50,711.01x = 1,962,817,013.57
  5. Step 5: Solve for x
    x = 1,962,817,013.57/50,711.01
  6. Step 6: Final answer
    x = 38,705.93

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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.