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Finding the Fourth Proportional to 14,459.78, 21,670.22 and 5,692.34

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Solution

The fourth proportional to 14,459.78, 21,670.22 and 5,692.34 is: 8,530.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,459.78 : 21,670.22 = 5,692.34 : x
  2. Step 2: Convert to fraction form
    14,459.78/21,670.22 = 5,692.34/x
  3. Step 3: Cross multiply
    14,459.78x = 21,670.22 × 5,692.34
  4. Step 4: Simplify right side
    14,459.78x = 123,354,260.11
  5. Step 5: Solve for x
    x = 123,354,260.11/14,459.78
  6. Step 6: Final answer
    x = 8,530.85

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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.