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Finding the Fourth Proportional to 29,152.40, 43,728.60 and 11,634.80

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Solution

The fourth proportional to 29,152.40, 43,728.60 and 11,634.80 is: 17,452.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,152.40 : 43,728.60 = 11,634.80 : x
  2. Step 2: Convert to fraction form
    29,152.40/43,728.60 = 11,634.80/x
  3. Step 3: Cross multiply
    29,152.40x = 43,728.60 × 11,634.80
  4. Step 4: Simplify right side
    29,152.40x = 508,773,515.28
  5. Step 5: Solve for x
    x = 508,773,515.28/29,152.40
  6. Step 6: Final answer
    x = 17,452.20

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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.