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Finding the Fourth Proportional to 9,820.43, 14,721.02 and 3,242.22

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Solution

The fourth proportional to 9,820.43, 14,721.02 and 3,242.22 is: 4,860.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,820.43 : 14,721.02 = 3,242.22 : x
  2. Step 2: Convert to fraction form
    9,820.43/14,721.02 = 3,242.22/x
  3. Step 3: Cross multiply
    9,820.43x = 14,721.02 × 3,242.22
  4. Step 4: Simplify right side
    9,820.43x = 47,728,785.46
  5. Step 5: Solve for x
    x = 47,728,785.46/9,820.43
  6. Step 6: Final answer
    x = 4,860.15

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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.