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Finding the Fourth Proportional to 51,092.86, 70,507.46 and 28,736.86

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Solution

The fourth proportional to 51,092.86, 70,507.46 and 28,736.86 is: 39,656.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,092.86 : 70,507.46 = 28,736.86 : x
  2. Step 2: Convert to fraction form
    51,092.86/70,507.46 = 28,736.86/x
  3. Step 3: Cross multiply
    51,092.86x = 70,507.46 × 28,736.86
  4. Step 4: Simplify right side
    51,092.86x = 2,026,163,006.98
  5. Step 5: Solve for x
    x = 2,026,163,006.98/51,092.86
  6. Step 6: Final answer
    x = 39,656.48

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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.