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Finding the Fourth Proportional to 18,329.60, 25,609.60 and 18,329.60

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Solution

The fourth proportional to 18,329.60, 25,609.60 and 18,329.60 is: 25,609.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,329.60 : 25,609.60 = 18,329.60 : x
  2. Step 2: Convert to fraction form
    18,329.60/25,609.60 = 18,329.60/x
  3. Step 3: Cross multiply
    18,329.60x = 25,609.60 × 18,329.60
  4. Step 4: Simplify right side
    18,329.60x = 469,413,724.16
  5. Step 5: Solve for x
    x = 469,413,724.16/18,329.60
  6. Step 6: Final answer
    x = 25,609.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.