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Finding the Fourth Proportional to 17,873.64, 26,810.43 and 5,561.64

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Solution

The fourth proportional to 17,873.64, 26,810.43 and 5,561.64 is: 8,342.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,873.64 : 26,810.43 = 5,561.64 : x
  2. Step 2: Convert to fraction form
    17,873.64/26,810.43 = 5,561.64/x
  3. Step 3: Cross multiply
    17,873.64x = 26,810.43 × 5,561.64
  4. Step 4: Simplify right side
    17,873.64x = 149,109,959.91
  5. Step 5: Solve for x
    x = 149,109,959.91/17,873.64
  6. Step 6: Final answer
    x = 8,342.45

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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.