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Finding the Fourth Proportional to 16,498.80, 24,748.20 and 4,186.80

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Solution

The fourth proportional to 16,498.80, 24,748.20 and 4,186.80 is: 6,280.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,498.80 : 24,748.20 = 4,186.80 : x
  2. Step 2: Convert to fraction form
    16,498.80/24,748.20 = 4,186.80/x
  3. Step 3: Cross multiply
    16,498.80x = 24,748.20 × 4,186.80
  4. Step 4: Simplify right side
    16,498.80x = 103,615,763.76
  5. Step 5: Solve for x
    x = 103,615,763.76/16,498.80
  6. Step 6: Final answer
    x = 6,280.20

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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.