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Finding the Fourth Proportional to 21,548.44, 29,729.70 and 17,562.70

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Solution

The fourth proportional to 21,548.44, 29,729.70 and 17,562.70 is: 24,230.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,548.44 : 29,729.70 = 17,562.70 : x
  2. Step 2: Convert to fraction form
    21,548.44/29,729.70 = 17,562.70/x
  3. Step 3: Cross multiply
    21,548.44x = 29,729.70 × 17,562.70
  4. Step 4: Simplify right side
    21,548.44x = 522,133,802.19
  5. Step 5: Solve for x
    x = 522,133,802.19/21,548.44
  6. Step 6: Final answer
    x = 24,230.70

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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.