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Finding the Fourth Proportional to 18,459.88, 27,697.94 and 9,692.76

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Solution

The fourth proportional to 18,459.88, 27,697.94 and 9,692.76 is: 14,543.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,459.88 : 27,697.94 = 9,692.76 : x
  2. Step 2: Convert to fraction form
    18,459.88/27,697.94 = 9,692.76/x
  3. Step 3: Cross multiply
    18,459.88x = 27,697.94 × 9,692.76
  4. Step 4: Simplify right side
    18,459.88x = 268,469,484.91
  5. Step 5: Solve for x
    x = 268,469,484.91/18,459.88
  6. Step 6: Final answer
    x = 14,543.40

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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.