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Finding the Fourth Proportional to 19,664.80, 29,464.80 and 16,748.80

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Solution

The fourth proportional to 19,664.80, 29,464.80 and 16,748.80 is: 25,095.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,664.80 : 29,464.80 = 16,748.80 : x
  2. Step 2: Convert to fraction form
    19,664.80/29,464.80 = 16,748.80/x
  3. Step 3: Cross multiply
    19,664.80x = 29,464.80 × 16,748.80
  4. Step 4: Simplify right side
    19,664.80x = 493,500,042.24
  5. Step 5: Solve for x
    x = 493,500,042.24/19,664.80
  6. Step 6: Final answer
    x = 25,095.60

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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.