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Finding the Fourth Proportional to 19,798.83, 29,698.25 and 8,104.05

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Solution

The fourth proportional to 19,798.83, 29,698.25 and 8,104.05 is: 12,156.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,798.83 : 29,698.25 = 8,104.05 : x
  2. Step 2: Convert to fraction form
    19,798.83/29,698.25 = 8,104.05/x
  3. Step 3: Cross multiply
    19,798.83x = 29,698.25 × 8,104.05
  4. Step 4: Simplify right side
    19,798.83x = 240,676,062.39
  5. Step 5: Solve for x
    x = 240,676,062.39/19,798.83
  6. Step 6: Final answer
    x = 12,156.08

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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.