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Finding the Fourth Proportional to 51,649.92, 71,311.59 and 34,679.34

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Solution

The fourth proportional to 51,649.92, 71,311.59 and 34,679.34 is: 47,880.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,649.92 : 71,311.59 = 34,679.34 : x
  2. Step 2: Convert to fraction form
    51,649.92/71,311.59 = 34,679.34/x
  3. Step 3: Cross multiply
    51,649.92x = 71,311.59 × 34,679.34
  4. Step 4: Simplify right side
    51,649.92x = 2,473,038,875.55
  5. Step 5: Solve for x
    x = 2,473,038,875.55/51,649.92
  6. Step 6: Final answer
    x = 47,880.79

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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.