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Finding the Fourth Proportional to 69,419.34, 95,808.20 and 39,950.46

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Solution

The fourth proportional to 69,419.34, 95,808.20 and 39,950.46 is: 55,137.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,419.34 : 95,808.20 = 39,950.46 : x
  2. Step 2: Convert to fraction form
    69,419.34/95,808.20 = 39,950.46/x
  3. Step 3: Cross multiply
    69,419.34x = 95,808.20 × 39,950.46
  4. Step 4: Simplify right side
    69,419.34x = 3,827,581,661.77
  5. Step 5: Solve for x
    x = 3,827,581,661.77/69,419.34
  6. Step 6: Final answer
    x = 55,137.11

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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.