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Finding the Fourth Proportional to 19,894.59, 29,842.23 and 6,747.30

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Solution

The fourth proportional to 19,894.59, 29,842.23 and 6,747.30 is: 10,121.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,894.59 : 29,842.23 = 6,747.30 : x
  2. Step 2: Convert to fraction form
    19,894.59/29,842.23 = 6,747.30/x
  3. Step 3: Cross multiply
    19,894.59x = 29,842.23 × 6,747.30
  4. Step 4: Simplify right side
    19,894.59x = 201,354,478.48
  5. Step 5: Solve for x
    x = 201,354,478.48/19,894.59
  6. Step 6: Final answer
    x = 10,121.07

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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.