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Finding the Fourth Proportional to 34,659.70, 47,786.98 and 28,925.37

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Solution

The fourth proportional to 34,659.70, 47,786.98 and 28,925.37 is: 39,880.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,659.70 : 47,786.98 = 28,925.37 : x
  2. Step 2: Convert to fraction form
    34,659.70/47,786.98 = 28,925.37/x
  3. Step 3: Cross multiply
    34,659.70x = 47,786.98 × 28,925.37
  4. Step 4: Simplify right side
    34,659.70x = 1,382,255,694.12
  5. Step 5: Solve for x
    x = 1,382,255,694.12/34,659.70
  6. Step 6: Final answer
    x = 39,880.78

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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.