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Finding the Fourth Proportional to 4,955.99, 7,433.78 and 1,668.20

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Solution

The fourth proportional to 4,955.99, 7,433.78 and 1,668.20 is: 2,502.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,955.99 : 7,433.78 = 1,668.20 : x
  2. Step 2: Convert to fraction form
    4,955.99/7,433.78 = 1,668.20/x
  3. Step 3: Cross multiply
    4,955.99x = 7,433.78 × 1,668.20
  4. Step 4: Simplify right side
    4,955.99x = 12,400,986.29
  5. Step 5: Solve for x
    x = 12,400,986.29/4,955.99
  6. Step 6: Final answer
    x = 2,502.22

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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.