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Finding the Fourth Proportional to 73,506.13, 101,438.27 and 39,972.13

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Solution

The fourth proportional to 73,506.13, 101,438.27 and 39,972.13 is: 55,161.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,506.13 : 101,438.27 = 39,972.13 : x
  2. Step 2: Convert to fraction form
    73,506.13/101,438.27 = 39,972.13/x
  3. Step 3: Cross multiply
    73,506.13x = 101,438.27 × 39,972.13
  4. Step 4: Simplify right side
    73,506.13x = 4,054,703,515.55
  5. Step 5: Solve for x
    x = 4,054,703,515.55/73,506.13
  6. Step 6: Final answer
    x = 55,161.43

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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.