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Finding the Fourth Proportional to 60,756.99, 91,135.49 and 19,200.75

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Solution

The fourth proportional to 60,756.99, 91,135.49 and 19,200.75 is: 28,801.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,756.99 : 91,135.49 = 19,200.75 : x
  2. Step 2: Convert to fraction form
    60,756.99/91,135.49 = 19,200.75/x
  3. Step 3: Cross multiply
    60,756.99x = 91,135.49 × 19,200.75
  4. Step 4: Simplify right side
    60,756.99x = 1,749,869,759.62
  5. Step 5: Solve for x
    x = 1,749,869,759.62/60,756.99
  6. Step 6: Final answer
    x = 28,801.13

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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.