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Finding the Fourth Proportional to 30,425.74, 45,654.67 and 21,598.09

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Solution

The fourth proportional to 30,425.74, 45,654.67 and 21,598.09 is: 32,408.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,425.74 : 45,654.67 = 21,598.09 : x
  2. Step 2: Convert to fraction form
    30,425.74/45,654.67 = 21,598.09/x
  3. Step 3: Cross multiply
    30,425.74x = 45,654.67 × 21,598.09
  4. Step 4: Simplify right side
    30,425.74x = 986,053,671.58
  5. Step 5: Solve for x
    x = 986,053,671.58/30,425.74
  6. Step 6: Final answer
    x = 32,408.54

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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.