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Finding the Fourth Proportional to 55,477.99, 76,559.63 and 29,984.28

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Solution

The fourth proportional to 55,477.99, 76,559.63 and 29,984.28 is: 41,378.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,477.99 : 76,559.63 = 29,984.28 : x
  2. Step 2: Convert to fraction form
    55,477.99/76,559.63 = 29,984.28/x
  3. Step 3: Cross multiply
    55,477.99x = 76,559.63 × 29,984.28
  4. Step 4: Simplify right side
    55,477.99x = 2,295,585,382.62
  5. Step 5: Solve for x
    x = 2,295,585,382.62/55,477.99
  6. Step 6: Final answer
    x = 41,378.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.