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Finding the Fourth Proportional to 19,516.80, 29,263.33 and 7,656.37

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Solution

The fourth proportional to 19,516.80, 29,263.33 and 7,656.37 is: 11,479.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,516.80 : 29,263.33 = 7,656.37 : x
  2. Step 2: Convert to fraction form
    19,516.80/29,263.33 = 7,656.37/x
  3. Step 3: Cross multiply
    19,516.80x = 29,263.33 × 7,656.37
  4. Step 4: Simplify right side
    19,516.80x = 224,050,939.86
  5. Step 5: Solve for x
    x = 224,050,939.86/19,516.80
  6. Step 6: Final answer
    x = 11,479.90

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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.