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Finding the Fourth Proportional to 16,658.76, 24,987.96 and 4,972.08

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Solution

The fourth proportional to 16,658.76, 24,987.96 and 4,972.08 is: 7,458.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,658.76 : 24,987.96 = 4,972.08 : x
  2. Step 2: Convert to fraction form
    16,658.76/24,987.96 = 4,972.08/x
  3. Step 3: Cross multiply
    16,658.76x = 24,987.96 × 4,972.08
  4. Step 4: Simplify right side
    16,658.76x = 124,242,136.16
  5. Step 5: Solve for x
    x = 124,242,136.16/16,658.76
  6. Step 6: Final answer
    x = 7,458.07

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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.