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Finding the Fourth Proportional to 61,900.91, 85,423.39 and 33,605.99

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Solution

The fourth proportional to 61,900.91, 85,423.39 and 33,605.99 is: 46,376.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,900.91 : 85,423.39 = 33,605.99 : x
  2. Step 2: Convert to fraction form
    61,900.91/85,423.39 = 33,605.99/x
  3. Step 3: Cross multiply
    61,900.91x = 85,423.39 × 33,605.99
  4. Step 4: Simplify right side
    61,900.91x = 2,870,737,162.99
  5. Step 5: Solve for x
    x = 2,870,737,162.99/61,900.91
  6. Step 6: Final answer
    x = 46,376.34

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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.