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Finding the Fourth Proportional to 4,558.89, 6,831.03 and 4,398.51

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Solution

The fourth proportional to 4,558.89, 6,831.03 and 4,398.51 is: 6,590.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,558.89 : 6,831.03 = 4,398.51 : x
  2. Step 2: Convert to fraction form
    4,558.89/6,831.03 = 4,398.51/x
  3. Step 3: Cross multiply
    4,558.89x = 6,831.03 × 4,398.51
  4. Step 4: Simplify right side
    4,558.89x = 30,046,353.77
  5. Step 5: Solve for x
    x = 30,046,353.77/4,558.89
  6. Step 6: Final answer
    x = 6,590.72

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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.