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Finding the Fourth Proportional to 8,459.31, 12,692.22 and 3,527.64

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Solution

The fourth proportional to 8,459.31, 12,692.22 and 3,527.64 is: 5,292.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,459.31 : 12,692.22 = 3,527.64 : x
  2. Step 2: Convert to fraction form
    8,459.31/12,692.22 = 3,527.64/x
  3. Step 3: Cross multiply
    8,459.31x = 12,692.22 × 3,527.64
  4. Step 4: Simplify right side
    8,459.31x = 44,773,582.96
  5. Step 5: Solve for x
    x = 44,773,582.96/8,459.31
  6. Step 6: Final answer
    x = 5,292.82

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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.