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Finding the Fourth Proportional to 19,456, 26,900.48 and 18,585.60

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Solution

The fourth proportional to 19,456, 26,900.48 and 18,585.60 is: 25,697.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,456 : 26,900.48 = 18,585.60 : x
  2. Step 2: Convert to fraction form
    19,456/26,900.48 = 18,585.60/x
  3. Step 3: Cross multiply
    19,456x = 26,900.48 × 18,585.60
  4. Step 4: Simplify right side
    19,456x = 499,961,561.09
  5. Step 5: Solve for x
    x = 499,961,561.09/19,456
  6. Step 6: Final answer
    x = 25,697.04

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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.