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Finding the Fourth Proportional to 17,898.78, 24,699.96 and 9,940.73

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Solution

The fourth proportional to 17,898.78, 24,699.96 and 9,940.73 is: 13,718.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,898.78 : 24,699.96 = 9,940.73 : x
  2. Step 2: Convert to fraction form
    17,898.78/24,699.96 = 9,940.73/x
  3. Step 3: Cross multiply
    17,898.78x = 24,699.96 × 9,940.73
  4. Step 4: Simplify right side
    17,898.78x = 245,535,695.12
  5. Step 5: Solve for x
    x = 245,535,695.12/17,898.78
  6. Step 6: Final answer
    x = 13,718.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.