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Finding the Fourth Proportional to 16,750.98, 25,118.15 and 8,307.79

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Solution

The fourth proportional to 16,750.98, 25,118.15 and 8,307.79 is: 12,457.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,750.98 : 25,118.15 = 8,307.79 : x
  2. Step 2: Convert to fraction form
    16,750.98/25,118.15 = 8,307.79/x
  3. Step 3: Cross multiply
    16,750.98x = 25,118.15 × 8,307.79
  4. Step 4: Simplify right side
    16,750.98x = 208,676,328.43
  5. Step 5: Solve for x
    x = 208,676,328.43/16,750.98
  6. Step 6: Final answer
    x = 12,457.56

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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.