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Finding the Fourth Proportional to 61,898.69, 85,421.23 and 33,604.38

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Solution

The fourth proportional to 61,898.69, 85,421.23 and 33,604.38 is: 46,374.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,898.69 : 85,421.23 = 33,604.38 : x
  2. Step 2: Convert to fraction form
    61,898.69/85,421.23 = 33,604.38/x
  3. Step 3: Cross multiply
    61,898.69x = 85,421.23 × 33,604.38
  4. Step 4: Simplify right side
    61,898.69x = 2,870,527,472.99
  5. Step 5: Solve for x
    x = 2,870,527,472.99/61,898.69
  6. Step 6: Final answer
    x = 46,374.61

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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.