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Finding the Fourth Proportional to 27,579.69, 38,033.51 and 18,525.51

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Solution

The fourth proportional to 27,579.69, 38,033.51 and 18,525.51 is: 25,547.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,579.69 : 38,033.51 = 18,525.51 : x
  2. Step 2: Convert to fraction form
    27,579.69/38,033.51 = 18,525.51/x
  3. Step 3: Cross multiply
    27,579.69x = 38,033.51 × 18,525.51
  4. Step 4: Simplify right side
    27,579.69x = 704,590,077.21
  5. Step 5: Solve for x
    x = 704,590,077.21/27,579.69
  6. Step 6: Final answer
    x = 25,547.43

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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.