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Finding the Fourth Proportional to 52,779.86, 79,169.76 and 13,336.97

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Solution

The fourth proportional to 52,779.86, 79,169.76 and 13,336.97 is: 20,005.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,779.86 : 79,169.76 = 13,336.97 : x
  2. Step 2: Convert to fraction form
    52,779.86/79,169.76 = 13,336.97/x
  3. Step 3: Cross multiply
    52,779.86x = 79,169.76 × 13,336.97
  4. Step 4: Simplify right side
    52,779.86x = 1,055,884,318.18
  5. Step 5: Solve for x
    x = 1,055,884,318.18/52,779.86
  6. Step 6: Final answer
    x = 20,005.44

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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.