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Finding the Fourth Proportional to 43,401.10, 65,101.65 and 25,905.10

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Solution

The fourth proportional to 43,401.10, 65,101.65 and 25,905.10 is: 38,857.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,401.10 : 65,101.65 = 25,905.10 : x
  2. Step 2: Convert to fraction form
    43,401.10/65,101.65 = 25,905.10/x
  3. Step 3: Cross multiply
    43,401.10x = 65,101.65 × 25,905.10
  4. Step 4: Simplify right side
    43,401.10x = 1,686,464,753.42
  5. Step 5: Solve for x
    x = 1,686,464,753.42/43,401.10
  6. Step 6: Final answer
    x = 38,857.65

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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.