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Finding the Fourth Proportional to 60,809.78, 91,191.42 and 29,211.05

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Solution

The fourth proportional to 60,809.78, 91,191.42 and 29,211.05 is: 43,805.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,809.78 : 91,191.42 = 29,211.05 : x
  2. Step 2: Convert to fraction form
    60,809.78/91,191.42 = 29,211.05/x
  3. Step 3: Cross multiply
    60,809.78x = 91,191.42 × 29,211.05
  4. Step 4: Simplify right side
    60,809.78x = 2,663,796,673.23
  5. Step 5: Solve for x
    x = 2,663,796,673.23/60,809.78
  6. Step 6: Final answer
    x = 43,805.40

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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.