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Finding the Fourth Proportional to 16,813.99, 25,215.08 and 4,964.60

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Solution

The fourth proportional to 16,813.99, 25,215.08 and 4,964.60 is: 7,445.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,813.99 : 25,215.08 = 4,964.60 : x
  2. Step 2: Convert to fraction form
    16,813.99/25,215.08 = 4,964.60/x
  3. Step 3: Cross multiply
    16,813.99x = 25,215.08 × 4,964.60
  4. Step 4: Simplify right side
    16,813.99x = 125,182,824.38
  5. Step 5: Solve for x
    x = 125,182,824.38/16,813.99
  6. Step 6: Final answer
    x = 7,445.16

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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.