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Finding the Fourth Proportional to 60,554.49, 90,834.87 and 18,431.25

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Solution

The fourth proportional to 60,554.49, 90,834.87 and 18,431.25 is: 27,647.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,554.49 : 90,834.87 = 18,431.25 : x
  2. Step 2: Convert to fraction form
    60,554.49/90,834.87 = 18,431.25/x
  3. Step 3: Cross multiply
    60,554.49x = 90,834.87 × 18,431.25
  4. Step 4: Simplify right side
    60,554.49x = 1,674,200,197.69
  5. Step 5: Solve for x
    x = 1,674,200,197.69/60,554.49
  6. Step 6: Final answer
    x = 27,647.83

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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.