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Finding the Fourth Proportional to 18,424.69, 27,637.21 and 4,573.69

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Solution

The fourth proportional to 18,424.69, 27,637.21 and 4,573.69 is: 6,860.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,424.69 : 27,637.21 = 4,573.69 : x
  2. Step 2: Convert to fraction form
    18,424.69/27,637.21 = 4,573.69/x
  3. Step 3: Cross multiply
    18,424.69x = 27,637.21 × 4,573.69
  4. Step 4: Simplify right side
    18,424.69x = 126,403,967.63
  5. Step 5: Solve for x
    x = 126,403,967.63/18,424.69
  6. Step 6: Final answer
    x = 6,860.58

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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.