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Finding the Fourth Proportional to 45,470.60, 68,205.90 and 14,301.80

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Solution

The fourth proportional to 45,470.60, 68,205.90 and 14,301.80 is: 21,452.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,470.60 : 68,205.90 = 14,301.80 : x
  2. Step 2: Convert to fraction form
    45,470.60/68,205.90 = 14,301.80/x
  3. Step 3: Cross multiply
    45,470.60x = 68,205.90 × 14,301.80
  4. Step 4: Simplify right side
    45,470.60x = 975,467,140.62
  5. Step 5: Solve for x
    x = 975,467,140.62/45,470.60
  6. Step 6: Final answer
    x = 21,452.70

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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.