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Finding the Fourth Proportional to 50,685.94, 69,945.36 and 28,024.35

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Solution

The fourth proportional to 50,685.94, 69,945.36 and 28,024.35 is: 38,672.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,685.94 : 69,945.36 = 28,024.35 : x
  2. Step 2: Convert to fraction form
    50,685.94/69,945.36 = 28,024.35/x
  3. Step 3: Cross multiply
    50,685.94x = 69,945.36 × 28,024.35
  4. Step 4: Simplify right side
    50,685.94x = 1,960,173,590.52
  5. Step 5: Solve for x
    x = 1,960,173,590.52/50,685.94
  6. Step 6: Final answer
    x = 38,672.93

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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.