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Finding the Fourth Proportional to 68,798.16, 103,195.08 and 19,550.16

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Solution

The fourth proportional to 68,798.16, 103,195.08 and 19,550.16 is: 29,324.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,798.16 : 103,195.08 = 19,550.16 : x
  2. Step 2: Convert to fraction form
    68,798.16/103,195.08 = 19,550.16/x
  3. Step 3: Cross multiply
    68,798.16x = 103,195.08 × 19,550.16
  4. Step 4: Simplify right side
    68,798.16x = 2,017,480,325.21
  5. Step 5: Solve for x
    x = 2,017,480,325.21/68,798.16
  6. Step 6: Final answer
    x = 29,324.63

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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.