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Finding the Fourth Proportional to 16,693.64, 25,024.14 and 7,921.16

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Solution

The fourth proportional to 16,693.64, 25,024.14 and 7,921.16 is: 11,874.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,693.64 : 25,024.14 = 7,921.16 : x
  2. Step 2: Convert to fraction form
    16,693.64/25,024.14 = 7,921.16/x
  3. Step 3: Cross multiply
    16,693.64x = 25,024.14 × 7,921.16
  4. Step 4: Simplify right side
    16,693.64x = 198,220,216.80
  5. Step 5: Solve for x
    x = 198,220,216.80/16,693.64
  6. Step 6: Final answer
    x = 11,874.00

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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.