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Finding the Fourth Proportional to 29,686.61, 44,522.15 and 8,621.01

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Solution

The fourth proportional to 29,686.61, 44,522.15 and 8,621.01 is: 12,929.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,686.61 : 44,522.15 = 8,621.01 : x
  2. Step 2: Convert to fraction form
    29,686.61/44,522.15 = 8,621.01/x
  3. Step 3: Cross multiply
    29,686.61x = 44,522.15 × 8,621.01
  4. Step 4: Simplify right side
    29,686.61x = 383,825,857.27
  5. Step 5: Solve for x
    x = 383,825,857.27/29,686.61
  6. Step 6: Final answer
    x = 12,929.26

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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.