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Finding the Fourth Proportional to 42,605.88, 63,917.03 and 19,232.34

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Solution

The fourth proportional to 42,605.88, 63,917.03 and 19,232.34 is: 28,852.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,605.88 : 63,917.03 = 19,232.34 : x
  2. Step 2: Convert to fraction form
    42,605.88/63,917.03 = 19,232.34/x
  3. Step 3: Cross multiply
    42,605.88x = 63,917.03 × 19,232.34
  4. Step 4: Simplify right side
    42,605.88x = 1,229,274,052.75
  5. Step 5: Solve for x
    x = 1,229,274,052.75/42,605.88
  6. Step 6: Final answer
    x = 28,852.22

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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.