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Finding the Fourth Proportional to 29,133.80, 43,700.70 and 13,338.80

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Solution

The fourth proportional to 29,133.80, 43,700.70 and 13,338.80 is: 20,008.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,133.80 : 43,700.70 = 13,338.80 : x
  2. Step 2: Convert to fraction form
    29,133.80/43,700.70 = 13,338.80/x
  3. Step 3: Cross multiply
    29,133.80x = 43,700.70 × 13,338.80
  4. Step 4: Simplify right side
    29,133.80x = 582,914,897.16
  5. Step 5: Solve for x
    x = 582,914,897.16/29,133.80
  6. Step 6: Final answer
    x = 20,008.20

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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.