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Finding the Fourth Proportional to 60,905.80, 91,355.46 and 19,349.56

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Solution

The fourth proportional to 60,905.80, 91,355.46 and 19,349.56 is: 29,023.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,905.80 : 91,355.46 = 19,349.56 : x
  2. Step 2: Convert to fraction form
    60,905.80/91,355.46 = 19,349.56/x
  3. Step 3: Cross multiply
    60,905.80x = 91,355.46 × 19,349.56
  4. Step 4: Simplify right side
    60,905.80x = 1,767,687,954.60
  5. Step 5: Solve for x
    x = 1,767,687,954.60/60,905.80
  6. Step 6: Final answer
    x = 29,023.31

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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.