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Finding the Fourth Proportional to 18,090.29, 24,950.89 and 15,848.28

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Solution

The fourth proportional to 18,090.29, 24,950.89 and 15,848.28 is: 21,858.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,090.29 : 24,950.89 = 15,848.28 : x
  2. Step 2: Convert to fraction form
    18,090.29/24,950.89 = 15,848.28/x
  3. Step 3: Cross multiply
    18,090.29x = 24,950.89 × 15,848.28
  4. Step 4: Simplify right side
    18,090.29x = 395,428,710.78
  5. Step 5: Solve for x
    x = 395,428,710.78/18,090.29
  6. Step 6: Final answer
    x = 21,858.61

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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.