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Finding the Fourth Proportional to 70,160.50, 96,823.62 and 38,331.45

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Solution

The fourth proportional to 70,160.50, 96,823.62 and 38,331.45 is: 52,898.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,160.50 : 96,823.62 = 38,331.45 : x
  2. Step 2: Convert to fraction form
    70,160.50/96,823.62 = 38,331.45/x
  3. Step 3: Cross multiply
    70,160.50x = 96,823.62 × 38,331.45
  4. Step 4: Simplify right side
    70,160.50x = 3,711,389,748.85
  5. Step 5: Solve for x
    x = 3,711,389,748.85/70,160.50
  6. Step 6: Final answer
    x = 52,898.56

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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.