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Finding the Fourth Proportional to 8,597.64, 11,865.74 and 4,821.84

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Solution

The fourth proportional to 8,597.64, 11,865.74 and 4,821.84 is: 6,654.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,597.64 : 11,865.74 = 4,821.84 : x
  2. Step 2: Convert to fraction form
    8,597.64/11,865.74 = 4,821.84/x
  3. Step 3: Cross multiply
    8,597.64x = 11,865.74 × 4,821.84
  4. Step 4: Simplify right side
    8,597.64x = 57,214,699.76
  5. Step 5: Solve for x
    x = 57,214,699.76/8,597.64
  6. Step 6: Final answer
    x = 6,654.70

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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.