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Finding the Fourth Proportional to 24,309.70, 33,547.39 and 13,131.70

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Solution

The fourth proportional to 24,309.70, 33,547.39 and 13,131.70 is: 18,121.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    24,309.70 : 33,547.39 = 13,131.70 : x
  2. Step 2: Convert to fraction form
    24,309.70/33,547.39 = 13,131.70/x
  3. Step 3: Cross multiply
    24,309.70x = 33,547.39 × 13,131.70
  4. Step 4: Simplify right side
    24,309.70x = 440,534,370.20
  5. Step 5: Solve for x
    x = 440,534,370.20/24,309.70
  6. Step 6: Final answer
    x = 18,121.75

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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.