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Finding the Fourth Proportional to 51,775.50, 71,450.19 and 29,419.50

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Solution

The fourth proportional to 51,775.50, 71,450.19 and 29,419.50 is: 40,598.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,775.50 : 71,450.19 = 29,419.50 : x
  2. Step 2: Convert to fraction form
    51,775.50/71,450.19 = 29,419.50/x
  3. Step 3: Cross multiply
    51,775.50x = 71,450.19 × 29,419.50
  4. Step 4: Simplify right side
    51,775.50x = 2,102,028,864.71
  5. Step 5: Solve for x
    x = 2,102,028,864.71/51,775.50
  6. Step 6: Final answer
    x = 40,598.91

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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.