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Finding the Fourth Proportional to 31,169.61, 43,009.02 and 17,741.07

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Solution

The fourth proportional to 31,169.61, 43,009.02 and 17,741.07 is: 24,479.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,169.61 : 43,009.02 = 17,741.07 : x
  2. Step 2: Convert to fraction form
    31,169.61/43,009.02 = 17,741.07/x
  3. Step 3: Cross multiply
    31,169.61x = 43,009.02 × 17,741.07
  4. Step 4: Simplify right side
    31,169.61x = 763,026,034.45
  5. Step 5: Solve for x
    x = 763,026,034.45/31,169.61
  6. Step 6: Final answer
    x = 24,479.81

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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.