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Finding the Fourth Proportional to 8,807.38, 13,206.72 and 4,359.88

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Solution

The fourth proportional to 8,807.38, 13,206.72 and 4,359.88 is: 6,537.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,807.38 : 13,206.72 = 4,359.88 : x
  2. Step 2: Convert to fraction form
    8,807.38/13,206.72 = 4,359.88/x
  3. Step 3: Cross multiply
    8,807.38x = 13,206.72 × 4,359.88
  4. Step 4: Simplify right side
    8,807.38x = 57,579,714.39
  5. Step 5: Solve for x
    x = 57,579,714.39/8,807.38
  6. Step 6: Final answer
    x = 6,537.67

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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.