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Finding the Fourth Proportional to 60,699.24, 91,048.90 and 19,149.48

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Solution

The fourth proportional to 60,699.24, 91,048.90 and 19,149.48 is: 28,724.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,699.24 : 91,048.90 = 19,149.48 : x
  2. Step 2: Convert to fraction form
    60,699.24/91,048.90 = 19,149.48/x
  3. Step 3: Cross multiply
    60,699.24x = 91,048.90 × 19,149.48
  4. Step 4: Simplify right side
    60,699.24x = 1,743,539,089.57
  5. Step 5: Solve for x
    x = 1,743,539,089.57/60,699.24
  6. Step 6: Final answer
    x = 28,724.23

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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.