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Finding the Fourth Proportional to 14,467.55, 21,700.40 and 4,613.90

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Solution

The fourth proportional to 14,467.55, 21,700.40 and 4,613.90 is: 6,920.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,467.55 : 21,700.40 = 4,613.90 : x
  2. Step 2: Convert to fraction form
    14,467.55/21,700.40 = 4,613.90/x
  3. Step 3: Cross multiply
    14,467.55x = 21,700.40 × 4,613.90
  4. Step 4: Simplify right side
    14,467.55x = 100,123,343.99
  5. Step 5: Solve for x
    x = 100,123,343.99/14,467.55
  6. Step 6: Final answer
    x = 6,920.55

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.