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Finding the Fourth Proportional to 61,783.43, 85,260.54 and 33,489.12

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Solution

The fourth proportional to 61,783.43, 85,260.54 and 33,489.12 is: 46,214.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,783.43 : 85,260.54 = 33,489.12 : x
  2. Step 2: Convert to fraction form
    61,783.43/85,260.54 = 33,489.12/x
  3. Step 3: Cross multiply
    61,783.43x = 85,260.54 × 33,489.12
  4. Step 4: Simplify right side
    61,783.43x = 2,855,300,425.37
  5. Step 5: Solve for x
    x = 2,855,300,425.37/61,783.43
  6. Step 6: Final answer
    x = 46,214.66

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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.