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Finding the Fourth Proportional to 51,503.43, 71,068.86 and 28,839.27

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Solution

The fourth proportional to 51,503.43, 71,068.86 and 28,839.27 is: 39,794.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,503.43 : 71,068.86 = 28,839.27 : x
  2. Step 2: Convert to fraction form
    51,503.43/71,068.86 = 28,839.27/x
  3. Step 3: Cross multiply
    51,503.43x = 71,068.86 × 28,839.27
  4. Step 4: Simplify right side
    51,503.43x = 2,049,574,042.13
  5. Step 5: Solve for x
    x = 2,049,574,042.13/51,503.43
  6. Step 6: Final answer
    x = 39,794.90

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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.