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Finding the Fourth Proportional to 18,552.76, 25,601.51 and 10,998.70

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Solution

The fourth proportional to 18,552.76, 25,601.51 and 10,998.70 is: 15,177.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,552.76 : 25,601.51 = 10,998.70 : x
  2. Step 2: Convert to fraction form
    18,552.76/25,601.51 = 10,998.70/x
  3. Step 3: Cross multiply
    18,552.76x = 25,601.51 × 10,998.70
  4. Step 4: Simplify right side
    18,552.76x = 281,583,328.04
  5. Step 5: Solve for x
    x = 281,583,328.04/18,552.76
  6. Step 6: Final answer
    x = 15,177.44

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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.