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Finding the Fourth Proportional to 17,955.94, 24,778.76 and 9,997.99

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Solution

The fourth proportional to 17,955.94, 24,778.76 and 9,997.99 is: 13,796.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,955.94 : 24,778.76 = 9,997.99 : x
  2. Step 2: Convert to fraction form
    17,955.94/24,778.76 = 9,997.99/x
  3. Step 3: Cross multiply
    17,955.94x = 24,778.76 × 9,997.99
  4. Step 4: Simplify right side
    17,955.94x = 247,737,620.81
  5. Step 5: Solve for x
    x = 247,737,620.81/17,955.94
  6. Step 6: Final answer
    x = 13,796.98

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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.