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Finding the Fourth Proportional to 44,687.86, 67,031.72 and 11,407.92

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Solution

The fourth proportional to 44,687.86, 67,031.72 and 11,407.92 is: 17,111.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,687.86 : 67,031.72 = 11,407.92 : x
  2. Step 2: Convert to fraction form
    44,687.86/67,031.72 = 11,407.92/x
  3. Step 3: Cross multiply
    44,687.86x = 67,031.72 × 11,407.92
  4. Step 4: Simplify right side
    44,687.86x = 764,692,499.22
  5. Step 5: Solve for x
    x = 764,692,499.22/44,687.86
  6. Step 6: Final answer
    x = 17,111.86

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1.5x scale

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.