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Finding the Fourth Proportional to 19,393.91, 29,090.29 and 5,354.80

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Solution

The fourth proportional to 19,393.91, 29,090.29 and 5,354.80 is: 8,032.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,393.91 : 29,090.29 = 5,354.80 : x
  2. Step 2: Convert to fraction form
    19,393.91/29,090.29 = 5,354.80/x
  3. Step 3: Cross multiply
    19,393.91x = 29,090.29 × 5,354.80
  4. Step 4: Simplify right side
    19,393.91x = 155,772,585.39
  5. Step 5: Solve for x
    x = 155,772,585.39/19,393.91
  6. Step 6: Final answer
    x = 8,032.04

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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.