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Finding the Fourth Proportional to 50,695.94, 69,954.26 and 28,031.88

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Solution

The fourth proportional to 50,695.94, 69,954.26 and 28,031.88 is: 38,680.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,695.94 : 69,954.26 = 28,031.88 : x
  2. Step 2: Convert to fraction form
    50,695.94/69,954.26 = 28,031.88/x
  3. Step 3: Cross multiply
    50,695.94x = 69,954.26 × 28,031.88
  4. Step 4: Simplify right side
    50,695.94x = 1,960,949,421.81
  5. Step 5: Solve for x
    x = 1,960,949,421.81/50,695.94
  6. Step 6: Final answer
    x = 38,680.60

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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.