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Finding the Fourth Proportional to 34,687.64, 52,031.77 and 8,392.41

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Solution

The fourth proportional to 34,687.64, 52,031.77 and 8,392.41 is: 12,588.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,687.64 : 52,031.77 = 8,392.41 : x
  2. Step 2: Convert to fraction form
    34,687.64/52,031.77 = 8,392.41/x
  3. Step 3: Cross multiply
    34,687.64x = 52,031.77 × 8,392.41
  4. Step 4: Simplify right side
    34,687.64x = 436,671,925.88
  5. Step 5: Solve for x
    x = 436,671,925.88/34,687.64
  6. Step 6: Final answer
    x = 12,588.69

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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.