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Finding the Fourth Proportional to 39,397.80, 59,096.70 and 38,814.60

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Solution

The fourth proportional to 39,397.80, 59,096.70 and 38,814.60 is: 58,221.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,397.80 : 59,096.70 = 38,814.60 : x
  2. Step 2: Convert to fraction form
    39,397.80/59,096.70 = 38,814.60/x
  3. Step 3: Cross multiply
    39,397.80x = 59,096.70 × 38,814.60
  4. Step 4: Simplify right side
    39,397.80x = 2,293,814,771.82
  5. Step 5: Solve for x
    x = 2,293,814,771.82/39,397.80
  6. Step 6: Final answer
    x = 58,221.90

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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.