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Finding the Fourth Proportional to 61,315.82, 84,601.04 and 35,807.70

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Solution

The fourth proportional to 61,315.82, 84,601.04 and 35,807.70 is: 49,405.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,315.82 : 84,601.04 = 35,807.70 : x
  2. Step 2: Convert to fraction form
    61,315.82/84,601.04 = 35,807.70/x
  3. Step 3: Cross multiply
    61,315.82x = 84,601.04 × 35,807.70
  4. Step 4: Simplify right side
    61,315.82x = 3,029,368,749.53
  5. Step 5: Solve for x
    x = 3,029,368,749.53/61,315.82
  6. Step 6: Final answer
    x = 49,405.99

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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.