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Finding the Fourth Proportional to 32,391.28, 44,699.16 and 18,243.28

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Solution

The fourth proportional to 32,391.28, 44,699.16 and 18,243.28 is: 25,175.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,391.28 : 44,699.16 = 18,243.28 : x
  2. Step 2: Convert to fraction form
    32,391.28/44,699.16 = 18,243.28/x
  3. Step 3: Cross multiply
    32,391.28x = 44,699.16 × 18,243.28
  4. Step 4: Simplify right side
    32,391.28x = 815,459,291.64
  5. Step 5: Solve for x
    x = 815,459,291.64/32,391.28
  6. Step 6: Final answer
    x = 25,175.27

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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.