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Finding the Fourth Proportional to 30,358.56, 41,892.84 and 16,929.03

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Solution

The fourth proportional to 30,358.56, 41,892.84 and 16,929.03 is: 23,360.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,358.56 : 41,892.84 = 16,929.03 : x
  2. Step 2: Convert to fraction form
    30,358.56/41,892.84 = 16,929.03/x
  3. Step 3: Cross multiply
    30,358.56x = 41,892.84 × 16,929.03
  4. Step 4: Simplify right side
    30,358.56x = 709,205,145.15
  5. Step 5: Solve for x
    x = 709,205,145.15/30,358.56
  6. Step 6: Final answer
    x = 23,360.96

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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.