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Finding the Fourth Proportional to 47,310.60, 70,965.90 and 45,496.20

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Solution

The fourth proportional to 47,310.60, 70,965.90 and 45,496.20 is: 68,244.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,310.60 : 70,965.90 = 45,496.20 : x
  2. Step 2: Convert to fraction form
    47,310.60/70,965.90 = 45,496.20/x
  3. Step 3: Cross multiply
    47,310.60x = 70,965.90 × 45,496.20
  4. Step 4: Simplify right side
    47,310.60x = 3,228,678,779.58
  5. Step 5: Solve for x
    x = 3,228,678,779.58/47,310.60
  6. Step 6: Final answer
    x = 68,244.30

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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.