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Finding the Fourth Proportional to 34,403.50, 51,613.92 and 9,779.50

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Solution

The fourth proportional to 34,403.50, 51,613.92 and 9,779.50 is: 14,671.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,403.50 : 51,613.92 = 9,779.50 : x
  2. Step 2: Convert to fraction form
    34,403.50/51,613.92 = 9,779.50/x
  3. Step 3: Cross multiply
    34,403.50x = 51,613.92 × 9,779.50
  4. Step 4: Simplify right side
    34,403.50x = 504,758,330.64
  5. Step 5: Solve for x
    x = 504,758,330.64/34,403.50
  6. Step 6: Final answer
    x = 14,671.71

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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.