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Finding the Fourth Proportional to 25,748.80, 38,626.80 and 10,957.60

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Solution

The fourth proportional to 25,748.80, 38,626.80 and 10,957.60 is: 16,437.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,748.80 : 38,626.80 = 10,957.60 : x
  2. Step 2: Convert to fraction form
    25,748.80/38,626.80 = 10,957.60/x
  3. Step 3: Cross multiply
    25,748.80x = 38,626.80 × 10,957.60
  4. Step 4: Simplify right side
    25,748.80x = 423,257,023.68
  5. Step 5: Solve for x
    x = 423,257,023.68/25,748.80
  6. Step 6: Final answer
    x = 16,437.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.