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Finding the Fourth Proportional to 52,779.93, 79,175.08 and 15,340.31

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Solution

The fourth proportional to 52,779.93, 79,175.08 and 15,340.31 is: 23,011.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,779.93 : 79,175.08 = 15,340.31 : x
  2. Step 2: Convert to fraction form
    52,779.93/79,175.08 = 15,340.31/x
  3. Step 3: Cross multiply
    52,779.93x = 79,175.08 × 15,340.31
  4. Step 4: Simplify right side
    52,779.93x = 1,214,570,488.59
  5. Step 5: Solve for x
    x = 1,214,570,488.59/52,779.93
  6. Step 6: Final answer
    x = 23,011.98

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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.