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Finding the Fourth Proportional to 19,394.74, 29,092.11 and 5,354.30

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Solution

The fourth proportional to 19,394.74, 29,092.11 and 5,354.30 is: 8,031.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,394.74 : 29,092.11 = 5,354.30 : x
  2. Step 2: Convert to fraction form
    19,394.74/29,092.11 = 5,354.30/x
  3. Step 3: Cross multiply
    19,394.74x = 29,092.11 × 5,354.30
  4. Step 4: Simplify right side
    19,394.74x = 155,767,967.34
  5. Step 5: Solve for x
    x = 155,767,967.34/19,394.74
  6. Step 6: Final answer
    x = 8,031.45

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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.