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Finding the Fourth Proportional to 47,602.88, 71,380.92 and 19,515.32

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Solution

The fourth proportional to 47,602.88, 71,380.92 and 19,515.32 is: 29,263.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,602.88 : 71,380.92 = 19,515.32 : x
  2. Step 2: Convert to fraction form
    47,602.88/71,380.92 = 19,515.32/x
  3. Step 3: Cross multiply
    47,602.88x = 71,380.92 × 19,515.32
  4. Step 4: Simplify right side
    47,602.88x = 1,393,021,495.69
  5. Step 5: Solve for x
    x = 1,393,021,495.69/47,602.88
  6. Step 6: Final answer
    x = 29,263.39

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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.