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Finding the Fourth Proportional to 18,993.45, 26,210.87 and 10,496.17

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Solution

The fourth proportional to 18,993.45, 26,210.87 and 10,496.17 is: 14,484.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,993.45 : 26,210.87 = 10,496.17 : x
  2. Step 2: Convert to fraction form
    18,993.45/26,210.87 = 10,496.17/x
  3. Step 3: Cross multiply
    18,993.45x = 26,210.87 × 10,496.17
  4. Step 4: Simplify right side
    18,993.45x = 275,113,590.05
  5. Step 5: Solve for x
    x = 275,113,590.05/18,993.45
  6. Step 6: Final answer
    x = 14,484.65

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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.