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Finding the Fourth Proportional to 33,836.69, 46,699.00 and 20,415.20

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Solution

The fourth proportional to 33,836.69, 46,699.00 and 20,415.20 is: 28,175.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,836.69 : 46,699.00 = 20,415.20 : x
  2. Step 2: Convert to fraction form
    33,836.69/46,699.00 = 20,415.20/x
  3. Step 3: Cross multiply
    33,836.69x = 46,699.00 × 20,415.20
  4. Step 4: Simplify right side
    33,836.69x = 953,369,140.27
  5. Step 5: Solve for x
    x = 953,369,140.27/33,836.69
  6. Step 6: Final answer
    x = 28,175.60

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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.