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Finding the Fourth Proportional to 51,433.99, 70,969.98 and 30,217.66

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Solution

The fourth proportional to 51,433.99, 70,969.98 and 30,217.66 is: 41,695.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,433.99 : 70,969.98 = 30,217.66 : x
  2. Step 2: Convert to fraction form
    51,433.99/70,969.98 = 30,217.66/x
  3. Step 3: Cross multiply
    51,433.99x = 70,969.98 × 30,217.66
  4. Step 4: Simplify right side
    51,433.99x = 2,144,546,725.85
  5. Step 5: Solve for x
    x = 2,144,546,725.85/51,433.99
  6. Step 6: Final answer
    x = 41,695.13

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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.