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Finding the Fourth Proportional to 50,713.06, 69,978.63 and 28,048.45

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Solution

The fourth proportional to 50,713.06, 69,978.63 and 28,048.45 is: 38,703.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,713.06 : 69,978.63 = 28,048.45 : x
  2. Step 2: Convert to fraction form
    50,713.06/69,978.63 = 28,048.45/x
  3. Step 3: Cross multiply
    50,713.06x = 69,978.63 × 28,048.45
  4. Step 4: Simplify right side
    50,713.06x = 1,962,791,614.49
  5. Step 5: Solve for x
    x = 1,962,791,614.49/50,713.06
  6. Step 6: Final answer
    x = 38,703.87

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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.