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Finding the Fourth Proportional to 8,798.61, 13,199.12 and 2,956.89

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Solution

The fourth proportional to 8,798.61, 13,199.12 and 2,956.89 is: 4,435.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,798.61 : 13,199.12 = 2,956.89 : x
  2. Step 2: Convert to fraction form
    8,798.61/13,199.12 = 2,956.89/x
  3. Step 3: Cross multiply
    8,798.61x = 13,199.12 × 2,956.89
  4. Step 4: Simplify right side
    8,798.61x = 39,028,331.15
  5. Step 5: Solve for x
    x = 39,028,331.15/8,798.61
  6. Step 6: Final answer
    x = 4,435.74

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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.