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Finding the Fourth Proportional to 16,679.53, 25,012.01 and 4,990.02

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Solution

The fourth proportional to 16,679.53, 25,012.01 and 4,990.02 is: 7,482.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,679.53 : 25,012.01 = 4,990.02 : x
  2. Step 2: Convert to fraction form
    16,679.53/25,012.01 = 4,990.02/x
  3. Step 3: Cross multiply
    16,679.53x = 25,012.01 × 4,990.02
  4. Step 4: Simplify right side
    16,679.53x = 124,810,430.14
  5. Step 5: Solve for x
    x = 124,810,430.14/16,679.53
  6. Step 6: Final answer
    x = 7,482.85

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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.