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Finding the Fourth Proportional to 8,765.51, 12,096.61 and 4,786.58

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Solution

The fourth proportional to 8,765.51, 12,096.61 and 4,786.58 is: 6,605.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,765.51 : 12,096.61 = 4,786.58 : x
  2. Step 2: Convert to fraction form
    8,765.51/12,096.61 = 4,786.58/x
  3. Step 3: Cross multiply
    8,765.51x = 12,096.61 × 4,786.58
  4. Step 4: Simplify right side
    8,765.51x = 57,901,409.77
  5. Step 5: Solve for x
    x = 57,901,409.77/8,765.51
  6. Step 6: Final answer
    x = 6,605.60

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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.