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Finding the Fourth Proportional to 23,649.40, 32,636.34 and 13,040.20

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Solution

The fourth proportional to 23,649.40, 32,636.34 and 13,040.20 is: 17,995.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,649.40 : 32,636.34 = 13,040.20 : x
  2. Step 2: Convert to fraction form
    23,649.40/32,636.34 = 13,040.20/x
  3. Step 3: Cross multiply
    23,649.40x = 32,636.34 × 13,040.20
  4. Step 4: Simplify right side
    23,649.40x = 425,584,400.87
  5. Step 5: Solve for x
    x = 425,584,400.87/23,649.40
  6. Step 6: Final answer
    x = 17,995.57

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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.