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Finding the Fourth Proportional to 5,672.19, 7,827.99 and 3,434.16

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Solution

The fourth proportional to 5,672.19, 7,827.99 and 3,434.16 is: 4,739.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,672.19 : 7,827.99 = 3,434.16 : x
  2. Step 2: Convert to fraction form
    5,672.19/7,827.99 = 3,434.16/x
  3. Step 3: Cross multiply
    5,672.19x = 7,827.99 × 3,434.16
  4. Step 4: Simplify right side
    5,672.19x = 26,882,570.14
  5. Step 5: Solve for x
    x = 26,882,570.14/5,672.19
  6. Step 6: Final answer
    x = 4,739.36

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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.