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Finding the Fourth Proportional to 18,555.69, 25,605.90 and 10,596.36

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Solution

The fourth proportional to 18,555.69, 25,605.90 and 10,596.36 is: 14,622.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,555.69 : 25,605.90 = 10,596.36 : x
  2. Step 2: Convert to fraction form
    18,555.69/25,605.90 = 10,596.36/x
  3. Step 3: Cross multiply
    18,555.69x = 25,605.90 × 10,596.36
  4. Step 4: Simplify right side
    18,555.69x = 271,329,334.52
  5. Step 5: Solve for x
    x = 271,329,334.52/18,555.69
  6. Step 6: Final answer
    x = 14,622.43

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Half scale
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Double scale
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Similar ratio
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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.