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Finding the Fourth Proportional to 62,814.80, 94,222.20 and 21,261.80

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Solution

The fourth proportional to 62,814.80, 94,222.20 and 21,261.80 is: 31,892.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,814.80 : 94,222.20 = 21,261.80 : x
  2. Step 2: Convert to fraction form
    62,814.80/94,222.20 = 21,261.80/x
  3. Step 3: Cross multiply
    62,814.80x = 94,222.20 × 21,261.80
  4. Step 4: Simplify right side
    62,814.80x = 2,003,333,571.96
  5. Step 5: Solve for x
    x = 2,003,333,571.96/62,814.80
  6. Step 6: Final answer
    x = 31,892.70

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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.