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Finding the Fourth Proportional to 8,770.21, 13,124.05 and 7,026.42

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Solution

The fourth proportional to 8,770.21, 13,124.05 and 7,026.42 is: 10,514.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,770.21 : 13,124.05 = 7,026.42 : x
  2. Step 2: Convert to fraction form
    8,770.21/13,124.05 = 7,026.42/x
  3. Step 3: Cross multiply
    8,770.21x = 13,124.05 × 7,026.42
  4. Step 4: Simplify right side
    8,770.21x = 92,215,101.90
  5. Step 5: Solve for x
    x = 92,215,101.90/8,770.21
  6. Step 6: Final answer
    x = 10,514.58

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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.