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Finding the Fourth Proportional to 5,167.29, 7,130.97 and 2,929.26

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Solution

The fourth proportional to 5,167.29, 7,130.97 and 2,929.26 is: 4,042.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,167.29 : 7,130.97 = 2,929.26 : x
  2. Step 2: Convert to fraction form
    5,167.29/7,130.97 = 2,929.26/x
  3. Step 3: Cross multiply
    5,167.29x = 7,130.97 × 2,929.26
  4. Step 4: Simplify right side
    5,167.29x = 20,888,465.18
  5. Step 5: Solve for x
    x = 20,888,465.18/5,167.29
  6. Step 6: Final answer
    x = 4,042.44

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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.