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Finding the Fourth Proportional to 22,090.70, 30,482.24 and 13,134.94

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Solution

The fourth proportional to 22,090.70, 30,482.24 and 13,134.94 is: 18,124.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,090.70 : 30,482.24 = 13,134.94 : x
  2. Step 2: Convert to fraction form
    22,090.70/30,482.24 = 13,134.94/x
  3. Step 3: Cross multiply
    22,090.70x = 30,482.24 × 13,134.94
  4. Step 4: Simplify right side
    22,090.70x = 400,382,393.47
  5. Step 5: Solve for x
    x = 400,382,393.47/22,090.70
  6. Step 6: Final answer
    x = 18,124.48

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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.