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Finding the Fourth Proportional to 47,310.63, 65,291.90 and 27,438.63

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Solution

The fourth proportional to 47,310.63, 65,291.90 and 27,438.63 is: 37,867.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,310.63 : 65,291.90 = 27,438.63 : x
  2. Step 2: Convert to fraction form
    47,310.63/65,291.90 = 27,438.63/x
  3. Step 3: Cross multiply
    47,310.63x = 65,291.90 × 27,438.63
  4. Step 4: Simplify right side
    47,310.63x = 1,791,520,148.90
  5. Step 5: Solve for x
    x = 1,791,520,148.90/47,310.63
  6. Step 6: Final answer
    x = 37,867.18

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1.5x scale

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.