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Finding the Fourth Proportional to 29,909.52, 44,847.95 and 12,369.78

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Solution

The fourth proportional to 29,909.52, 44,847.95 and 12,369.78 is: 18,547.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,909.52 : 44,847.95 = 12,369.78 : x
  2. Step 2: Convert to fraction form
    29,909.52/44,847.95 = 12,369.78/x
  3. Step 3: Cross multiply
    29,909.52x = 44,847.95 × 12,369.78
  4. Step 4: Simplify right side
    29,909.52x = 554,759,213.10
  5. Step 5: Solve for x
    x = 554,759,213.10/29,909.52
  6. Step 6: Final answer
    x = 18,547.91

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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.