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Finding the Fourth Proportional to 61,898.89, 85,420.23 and 33,604.57

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Solution

The fourth proportional to 61,898.89, 85,420.23 and 33,604.57 is: 46,374.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,898.89 : 85,420.23 = 33,604.57 : x
  2. Step 2: Convert to fraction form
    61,898.89/85,420.23 = 33,604.57/x
  3. Step 3: Cross multiply
    61,898.89x = 85,420.23 × 33,604.57
  4. Step 4: Simplify right side
    61,898.89x = 2,870,510,098.45
  5. Step 5: Solve for x
    x = 2,870,510,098.45/61,898.89
  6. Step 6: Final answer
    x = 46,374.18

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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.