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Finding the Fourth Proportional to 8,348.89, 11,521.61 and 4,572

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Solution

The fourth proportional to 8,348.89, 11,521.61 and 4,572 is: 6,309.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,348.89 : 11,521.61 = 4,572 : x
  2. Step 2: Convert to fraction form
    8,348.89/11,521.61 = 4,572/x
  3. Step 3: Cross multiply
    8,348.89x = 11,521.61 × 4,572
  4. Step 4: Simplify right side
    8,348.89x = 52,676,800.92
  5. Step 5: Solve for x
    x = 52,676,800.92/8,348.89
  6. Step 6: Final answer
    x = 6,309.44

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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.