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Finding the Fourth Proportional to 18,225.99, 27,338.99 and 4,374.99

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Solution

The fourth proportional to 18,225.99, 27,338.99 and 4,374.99 is: 6,562.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,225.99 : 27,338.99 = 4,374.99 : x
  2. Step 2: Convert to fraction form
    18,225.99/27,338.99 = 4,374.99/x
  3. Step 3: Cross multiply
    18,225.99x = 27,338.99 × 4,374.99
  4. Step 4: Simplify right side
    18,225.99x = 119,607,796.92
  5. Step 5: Solve for x
    x = 119,607,796.92/18,225.99
  6. Step 6: Final answer
    x = 6,562.49

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.