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Finding the Fourth Proportional to 71,299.91, 98,292.42 and 48,609.79

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Solution

The fourth proportional to 71,299.91, 98,292.42 and 48,609.79 is: 67,012.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,299.91 : 98,292.42 = 48,609.79 : x
  2. Step 2: Convert to fraction form
    71,299.91/98,292.42 = 48,609.79/x
  3. Step 3: Cross multiply
    71,299.91x = 98,292.42 × 48,609.79
  4. Step 4: Simplify right side
    71,299.91x = 4,777,973,649.06
  5. Step 5: Solve for x
    x = 4,777,973,649.06/71,299.91
  6. Step 6: Final answer
    x = 67,012.34

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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.