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Finding the Fourth Proportional to 51,625.99, 71,242.50 and 28,963.09

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Solution

The fourth proportional to 51,625.99, 71,242.50 and 28,963.09 is: 39,968.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,625.99 : 71,242.50 = 28,963.09 : x
  2. Step 2: Convert to fraction form
    51,625.99/71,242.50 = 28,963.09/x
  3. Step 3: Cross multiply
    51,625.99x = 71,242.50 × 28,963.09
  4. Step 4: Simplify right side
    51,625.99x = 2,063,402,939.33
  5. Step 5: Solve for x
    x = 2,063,402,939.33/51,625.99
  6. Step 6: Final answer
    x = 39,968.30

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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.