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Finding the Fourth Proportional to 33,042.40, 49,563.60 and 10,859.20

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Solution

The fourth proportional to 33,042.40, 49,563.60 and 10,859.20 is: 16,288.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,042.40 : 49,563.60 = 10,859.20 : x
  2. Step 2: Convert to fraction form
    33,042.40/49,563.60 = 10,859.20/x
  3. Step 3: Cross multiply
    33,042.40x = 49,563.60 × 10,859.20
  4. Step 4: Simplify right side
    33,042.40x = 538,221,045.12
  5. Step 5: Solve for x
    x = 538,221,045.12/33,042.40
  6. Step 6: Final answer
    x = 16,288.80

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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.