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Finding the Fourth Proportional to 18,594.09, 25,635.08 and 13,485.02

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Solution

The fourth proportional to 18,594.09, 25,635.08 and 13,485.02 is: 18,591.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,594.09 : 25,635.08 = 13,485.02 : x
  2. Step 2: Convert to fraction form
    18,594.09/25,635.08 = 13,485.02/x
  3. Step 3: Cross multiply
    18,594.09x = 25,635.08 × 13,485.02
  4. Step 4: Simplify right side
    18,594.09x = 345,689,438.33
  5. Step 5: Solve for x
    x = 345,689,438.33/18,594.09
  6. Step 6: Final answer
    x = 18,591.36

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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.