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Finding the Fourth Proportional to 16,999.90, 25,482.30 and 7,644.40

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Solution

The fourth proportional to 16,999.90, 25,482.30 and 7,644.40 is: 11,458.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,999.90 : 25,482.30 = 7,644.40 : x
  2. Step 2: Convert to fraction form
    16,999.90/25,482.30 = 7,644.40/x
  3. Step 3: Cross multiply
    16,999.90x = 25,482.30 × 7,644.40
  4. Step 4: Simplify right side
    16,999.90x = 194,796,894.12
  5. Step 5: Solve for x
    x = 194,796,894.12/16,999.90
  6. Step 6: Final answer
    x = 11,458.71

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1.5x scale

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.