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Finding the Fourth Proportional to 31,595.84, 47,310.72 and 26,653.12

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Solution

The fourth proportional to 31,595.84, 47,310.72 and 26,653.12 is: 39,909.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,595.84 : 47,310.72 = 26,653.12 : x
  2. Step 2: Convert to fraction form
    31,595.84/47,310.72 = 26,653.12/x
  3. Step 3: Cross multiply
    31,595.84x = 47,310.72 × 26,653.12
  4. Step 4: Simplify right side
    31,595.84x = 1,260,978,297.45
  5. Step 5: Solve for x
    x = 1,260,978,297.45/31,595.84
  6. Step 6: Final answer
    x = 39,909.63

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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.