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Finding the Fourth Proportional to 65,146.56, 89,902.59 and 36,851.64

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Solution

The fourth proportional to 65,146.56, 89,902.59 and 36,851.64 is: 50,855.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,146.56 : 89,902.59 = 36,851.64 : x
  2. Step 2: Convert to fraction form
    65,146.56/89,902.59 = 36,851.64/x
  3. Step 3: Cross multiply
    65,146.56x = 89,902.59 × 36,851.64
  4. Step 4: Simplify right side
    65,146.56x = 3,313,057,697.49
  5. Step 5: Solve for x
    x = 3,313,057,697.49/65,146.56
  6. Step 6: Final answer
    x = 50,855.45

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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.