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Finding the Fourth Proportional to 52,986.69, 79,480.46 and 15,547.37

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Solution

The fourth proportional to 52,986.69, 79,480.46 and 15,547.37 is: 23,321.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,986.69 : 79,480.46 = 15,547.37 : x
  2. Step 2: Convert to fraction form
    52,986.69/79,480.46 = 15,547.37/x
  3. Step 3: Cross multiply
    52,986.69x = 79,480.46 × 15,547.37
  4. Step 4: Simplify right side
    52,986.69x = 1,235,711,760.86
  5. Step 5: Solve for x
    x = 1,235,711,760.86/52,986.69
  6. Step 6: Final answer
    x = 23,321.17

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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.