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Finding the Fourth Proportional to 5,892.12, 8,130.89 and 3,239.51

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Solution

The fourth proportional to 5,892.12, 8,130.89 and 3,239.51 is: 4,470.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,892.12 : 8,130.89 = 3,239.51 : x
  2. Step 2: Convert to fraction form
    5,892.12/8,130.89 = 3,239.51/x
  3. Step 3: Cross multiply
    5,892.12x = 8,130.89 × 3,239.51
  4. Step 4: Simplify right side
    5,892.12x = 26,340,066.91
  5. Step 5: Solve for x
    x = 26,340,066.91/5,892.12
  6. Step 6: Final answer
    x = 4,470.39

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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.