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Finding the Fourth Proportional to 30,029.63, 41,440.88 and 16,781.63

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Solution

The fourth proportional to 30,029.63, 41,440.88 and 16,781.63 is: 23,158.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,029.63 : 41,440.88 = 16,781.63 : x
  2. Step 2: Convert to fraction form
    30,029.63/41,440.88 = 16,781.63/x
  3. Step 3: Cross multiply
    30,029.63x = 41,440.88 × 16,781.63
  4. Step 4: Simplify right side
    30,029.63x = 695,445,515.03
  5. Step 5: Solve for x
    x = 695,445,515.03/30,029.63
  6. Step 6: Final answer
    x = 23,158.64

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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.