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Finding the Fourth Proportional to 31,085.55, 46,629.99 and 8,902.17

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Solution

The fourth proportional to 31,085.55, 46,629.99 and 8,902.17 is: 13,353.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,085.55 : 46,629.99 = 8,902.17 : x
  2. Step 2: Convert to fraction form
    31,085.55/46,629.99 = 8,902.17/x
  3. Step 3: Cross multiply
    31,085.55x = 46,629.99 × 8,902.17
  4. Step 4: Simplify right side
    31,085.55x = 415,108,098.08
  5. Step 5: Solve for x
    x = 415,108,098.08/31,085.55
  6. Step 6: Final answer
    x = 13,353.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.