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Finding the Fourth Proportional to 45,416.88, 68,123.70 and 15,834.60

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Solution

The fourth proportional to 45,416.88, 68,123.70 and 15,834.60 is: 23,751.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,416.88 : 68,123.70 = 15,834.60 : x
  2. Step 2: Convert to fraction form
    45,416.88/68,123.70 = 15,834.60/x
  3. Step 3: Cross multiply
    45,416.88x = 68,123.70 × 15,834.60
  4. Step 4: Simplify right side
    45,416.88x = 1,078,711,540.02
  5. Step 5: Solve for x
    x = 1,078,711,540.02/45,416.88
  6. Step 6: Final answer
    x = 23,751.34

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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.