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Finding the Fourth Proportional to 33,008.40, 49,520.28 and 10,820.40

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Solution

The fourth proportional to 33,008.40, 49,520.28 and 10,820.40 is: 16,233.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,008.40 : 49,520.28 = 10,820.40 : x
  2. Step 2: Convert to fraction form
    33,008.40/49,520.28 = 10,820.40/x
  3. Step 3: Cross multiply
    33,008.40x = 49,520.28 × 10,820.40
  4. Step 4: Simplify right side
    33,008.40x = 535,829,237.71
  5. Step 5: Solve for x
    x = 535,829,237.71/33,008.40
  6. Step 6: Final answer
    x = 16,233.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.