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Finding the Fourth Proportional to 61,784.74, 85,263.05 and 33,490.49

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Solution

The fourth proportional to 61,784.74, 85,263.05 and 33,490.49 is: 46,216.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,784.74 : 85,263.05 = 33,490.49 : x
  2. Step 2: Convert to fraction form
    61,784.74/85,263.05 = 33,490.49/x
  3. Step 3: Cross multiply
    61,784.74x = 85,263.05 × 33,490.49
  4. Step 4: Simplify right side
    61,784.74x = 2,855,501,155.94
  5. Step 5: Solve for x
    x = 2,855,501,155.94/61,784.74
  6. Step 6: Final answer
    x = 46,216.94

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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.