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Finding the Fourth Proportional to 60,539.22, 90,808.83 and 18,419.22

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Solution

The fourth proportional to 60,539.22, 90,808.83 and 18,419.22 is: 27,628.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,539.22 : 90,808.83 = 18,419.22 : x
  2. Step 2: Convert to fraction form
    60,539.22/90,808.83 = 18,419.22/x
  3. Step 3: Cross multiply
    60,539.22x = 90,808.83 × 18,419.22
  4. Step 4: Simplify right side
    60,539.22x = 1,672,627,817.71
  5. Step 5: Solve for x
    x = 1,672,627,817.71/60,539.22
  6. Step 6: Final answer
    x = 27,628.83

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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.