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Finding the Fourth Proportional to 16,657.90, 24,979.56 and 4,968.79

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Solution

The fourth proportional to 16,657.90, 24,979.56 and 4,968.79 is: 7,451.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,657.90 : 24,979.56 = 4,968.79 : x
  2. Step 2: Convert to fraction form
    16,657.90/24,979.56 = 4,968.79/x
  3. Step 3: Cross multiply
    16,657.90x = 24,979.56 × 4,968.79
  4. Step 4: Simplify right side
    16,657.90x = 124,118,187.93
  5. Step 5: Solve for x
    x = 124,118,187.93/16,657.90
  6. Step 6: Final answer
    x = 7,451.01

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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.