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Finding the Fourth Proportional to 5,582.70, 8,364.45 and 4,718.70

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Solution

The fourth proportional to 5,582.70, 8,364.45 and 4,718.70 is: 7,069.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,582.70 : 8,364.45 = 4,718.70 : x
  2. Step 2: Convert to fraction form
    5,582.70/8,364.45 = 4,718.70/x
  3. Step 3: Cross multiply
    5,582.70x = 8,364.45 × 4,718.70
  4. Step 4: Simplify right side
    5,582.70x = 39,469,330.22
  5. Step 5: Solve for x
    x = 39,469,330.22/5,582.70
  6. Step 6: Final answer
    x = 7,069.94

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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.