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Finding the Fourth Proportional to 62,755.80, 94,133.70 and 21,202.20

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Solution

The fourth proportional to 62,755.80, 94,133.70 and 21,202.20 is: 31,803.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,755.80 : 94,133.70 = 21,202.20 : x
  2. Step 2: Convert to fraction form
    62,755.80/94,133.70 = 21,202.20/x
  3. Step 3: Cross multiply
    62,755.80x = 94,133.70 × 21,202.20
  4. Step 4: Simplify right side
    62,755.80x = 1,995,841,534.14
  5. Step 5: Solve for x
    x = 1,995,841,534.14/62,755.80
  6. Step 6: Final answer
    x = 31,803.30

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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.