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Finding the Fourth Proportional to 51,059.25, 70,461.77 and 28,703.25

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Solution

The fourth proportional to 51,059.25, 70,461.77 and 28,703.25 is: 39,610.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,059.25 : 70,461.77 = 28,703.25 : x
  2. Step 2: Convert to fraction form
    51,059.25/70,461.77 = 28,703.25/x
  3. Step 3: Cross multiply
    51,059.25x = 70,461.77 × 28,703.25
  4. Step 4: Simplify right side
    51,059.25x = 2,022,481,656.24
  5. Step 5: Solve for x
    x = 2,022,481,656.24/51,059.25
  6. Step 6: Final answer
    x = 39,610.49

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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.