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Finding the Fourth Proportional to 8,597.37, 11,864.88 and 4,821.78

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Solution

The fourth proportional to 8,597.37, 11,864.88 and 4,821.78 is: 6,654.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,597.37 : 11,864.88 = 4,821.78 : x
  2. Step 2: Convert to fraction form
    8,597.37/11,864.88 = 4,821.78/x
  3. Step 3: Cross multiply
    8,597.37x = 11,864.88 × 4,821.78
  4. Step 4: Simplify right side
    8,597.37x = 57,209,841.09
  5. Step 5: Solve for x
    x = 57,209,841.09/8,597.37
  6. Step 6: Final answer
    x = 6,654.34

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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.