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Finding the Fourth Proportional to 30,262.80, 41,762.06 and 16,833.78

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Solution

The fourth proportional to 30,262.80, 41,762.06 and 16,833.78 is: 23,230.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,262.80 : 41,762.06 = 16,833.78 : x
  2. Step 2: Convert to fraction form
    30,262.80/41,762.06 = 16,833.78/x
  3. Step 3: Cross multiply
    30,262.80x = 41,762.06 × 16,833.78
  4. Step 4: Simplify right side
    30,262.80x = 703,013,330.39
  5. Step 5: Solve for x
    x = 703,013,330.39/30,262.80
  6. Step 6: Final answer
    x = 23,230.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.