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Finding the Fourth Proportional to 29,971,781.60, 44,957,672.40 and 21,846,639.20

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Solution

The fourth proportional to 29,971,781.60, 44,957,672.40 and 21,846,639.20 is: 32,769,958.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,971,781.60 : 44,957,672.40 = 21,846,639.20 : x
  2. Step 2: Convert to fraction form
    29,971,781.60/44,957,672.40 = 21,846,639.20/x
  3. Step 3: Cross multiply
    29,971,781.60x = 44,957,672.40 × 21,846,639.20
  4. Step 4: Simplify right side
    29,971,781.60x = 982,174,048,194,598
  5. Step 5: Solve for x
    x = 982,174,048,194,598/29,971,781.60
  6. Step 6: Final answer
    x = 32,769,958.80

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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.