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Finding the Fourth Proportional to 5,582.48, 8,373.93 and 1,422.59

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Solution

The fourth proportional to 5,582.48, 8,373.93 and 1,422.59 is: 2,133.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,582.48 : 8,373.93 = 1,422.59 : x
  2. Step 2: Convert to fraction form
    5,582.48/8,373.93 = 1,422.59/x
  3. Step 3: Cross multiply
    5,582.48x = 8,373.93 × 1,422.59
  4. Step 4: Simplify right side
    5,582.48x = 11,912,669.08
  5. Step 5: Solve for x
    x = 11,912,669.08/5,582.48
  6. Step 6: Final answer
    x = 2,133.94

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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.