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Finding the Fourth Proportional to 8,597.69, 11,865.47 and 4,821.69

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Solution

The fourth proportional to 8,597.69, 11,865.47 and 4,821.69 is: 6,654.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,597.69 : 11,865.47 = 4,821.69 : x
  2. Step 2: Convert to fraction form
    8,597.69/11,865.47 = 4,821.69/x
  3. Step 3: Cross multiply
    8,597.69x = 11,865.47 × 4,821.69
  4. Step 4: Simplify right side
    8,597.69x = 57,211,593.94
  5. Step 5: Solve for x
    x = 57,211,593.94/8,597.69
  6. Step 6: Final answer
    x = 6,654.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.