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Finding the Fourth Proportional to 16,999.70, 25,499.55 and 16,654.10

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Solution

The fourth proportional to 16,999.70, 25,499.55 and 16,654.10 is: 24,981.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,999.70 : 25,499.55 = 16,654.10 : x
  2. Step 2: Convert to fraction form
    16,999.70/25,499.55 = 16,654.10/x
  3. Step 3: Cross multiply
    16,999.70x = 25,499.55 × 16,654.10
  4. Step 4: Simplify right side
    16,999.70x = 424,672,055.66
  5. Step 5: Solve for x
    x = 424,672,055.66/16,999.70
  6. Step 6: Final answer
    x = 24,981.15

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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.