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Finding the Fourth Proportional to 39,165, 54,050.94 and 22,401.24

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Solution

The fourth proportional to 39,165, 54,050.94 and 22,401.24 is: 30,915.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,165 : 54,050.94 = 22,401.24 : x
  2. Step 2: Convert to fraction form
    39,165/54,050.94 = 22,401.24/x
  3. Step 3: Cross multiply
    39,165x = 54,050.94 × 22,401.24
  4. Step 4: Simplify right side
    39,165x = 1,210,808,079.17
  5. Step 5: Solve for x
    x = 1,210,808,079.17/39,165
  6. Step 6: Final answer
    x = 30,915.56

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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.