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Finding the Fourth Proportional to 16,211.93, 24,317.90 and 12,519.55

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Solution

The fourth proportional to 16,211.93, 24,317.90 and 12,519.55 is: 18,779.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,211.93 : 24,317.90 = 12,519.55 : x
  2. Step 2: Convert to fraction form
    16,211.93/24,317.90 = 12,519.55/x
  3. Step 3: Cross multiply
    16,211.93x = 24,317.90 × 12,519.55
  4. Step 4: Simplify right side
    16,211.93x = 304,448,980.76
  5. Step 5: Solve for x
    x = 304,448,980.76/16,211.93
  6. Step 6: Final answer
    x = 18,779.32

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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.