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Finding the Fourth Proportional to 9,672.10, 14,508.15 and 8,404.90

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Solution

The fourth proportional to 9,672.10, 14,508.15 and 8,404.90 is: 12,607.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,672.10 : 14,508.15 = 8,404.90 : x
  2. Step 2: Convert to fraction form
    9,672.10/14,508.15 = 8,404.90/x
  3. Step 3: Cross multiply
    9,672.10x = 14,508.15 × 8,404.90
  4. Step 4: Simplify right side
    9,672.10x = 121,939,549.94
  5. Step 5: Solve for x
    x = 121,939,549.94/9,672.10
  6. Step 6: Final answer
    x = 12,607.35

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Similar ratio
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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.