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Finding the Fourth Proportional to 12,307.66, 18,450.51 and 4,514.66

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Solution

The fourth proportional to 12,307.66, 18,450.51 and 4,514.66 is: 6,767.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,307.66 : 18,450.51 = 4,514.66 : x
  2. Step 2: Convert to fraction form
    12,307.66/18,450.51 = 4,514.66/x
  3. Step 3: Cross multiply
    12,307.66x = 18,450.51 × 4,514.66
  4. Step 4: Simplify right side
    12,307.66x = 83,297,779.48
  5. Step 5: Solve for x
    x = 83,297,779.48/12,307.66
  6. Step 6: Final answer
    x = 6,767.96

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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.