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Finding the Fourth Proportional to 70,995.94, 106,519.02 and 31,549.48

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Solution

The fourth proportional to 70,995.94, 106,519.02 and 31,549.48 is: 47,335.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,995.94 : 106,519.02 = 31,549.48 : x
  2. Step 2: Convert to fraction form
    70,995.94/106,519.02 = 31,549.48/x
  3. Step 3: Cross multiply
    70,995.94x = 106,519.02 × 31,549.48
  4. Step 4: Simplify right side
    70,995.94x = 3,360,619,691.11
  5. Step 5: Solve for x
    x = 3,360,619,691.11/70,995.94
  6. Step 6: Final answer
    x = 47,335.38

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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.