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Finding the Fourth Proportional to 7,886.64, 11,826.04 and 4,600.56

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Solution

The fourth proportional to 7,886.64, 11,826.04 and 4,600.56 is: 6,898.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,886.64 : 11,826.04 = 4,600.56 : x
  2. Step 2: Convert to fraction form
    7,886.64/11,826.04 = 4,600.56/x
  3. Step 3: Cross multiply
    7,886.64x = 11,826.04 × 4,600.56
  4. Step 4: Simplify right side
    7,886.64x = 54,406,406.58
  5. Step 5: Solve for x
    x = 54,406,406.58/7,886.64
  6. Step 6: Final answer
    x = 6,898.55

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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.