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Finding the Fourth Proportional to 71,010.88, 97,951.78 and 42,311.67

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Solution

The fourth proportional to 71,010.88, 97,951.78 and 42,311.67 is: 58,364.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,010.88 : 97,951.78 = 42,311.67 : x
  2. Step 2: Convert to fraction form
    71,010.88/97,951.78 = 42,311.67/x
  3. Step 3: Cross multiply
    71,010.88x = 97,951.78 × 42,311.67
  4. Step 4: Simplify right side
    71,010.88x = 4,144,503,076.84
  5. Step 5: Solve for x
    x = 4,144,503,076.84/71,010.88
  6. Step 6: Final answer
    x = 58,364.34

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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.