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Finding the Fourth Proportional to 30,487.58, 45,672.20 and 22,467.78

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Solution

The fourth proportional to 30,487.58, 45,672.20 and 22,467.78 is: 33,658.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,487.58 : 45,672.20 = 22,467.78 : x
  2. Step 2: Convert to fraction form
    30,487.58/45,672.20 = 22,467.78/x
  3. Step 3: Cross multiply
    30,487.58x = 45,672.20 × 22,467.78
  4. Step 4: Simplify right side
    30,487.58x = 1,026,152,941.72
  5. Step 5: Solve for x
    x = 1,026,152,941.72/30,487.58
  6. Step 6: Final answer
    x = 33,658.06

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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.