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Finding the Fourth Proportional to 8,898.45, 13,343.16 and 2,973.21

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Solution

The fourth proportional to 8,898.45, 13,343.16 and 2,973.21 is: 4,458.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,898.45 : 13,343.16 = 2,973.21 : x
  2. Step 2: Convert to fraction form
    8,898.45/13,343.16 = 2,973.21/x
  3. Step 3: Cross multiply
    8,898.45x = 13,343.16 × 2,973.21
  4. Step 4: Simplify right side
    8,898.45x = 39,672,016.74
  5. Step 5: Solve for x
    x = 39,672,016.74/8,898.45
  6. Step 6: Final answer
    x = 4,458.31

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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.