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Finding the Fourth Proportional to 65,224.62, 89,954.85 and 45,049.53

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Solution

The fourth proportional to 65,224.62, 89,954.85 and 45,049.53 is: 62,130.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,224.62 : 89,954.85 = 45,049.53 : x
  2. Step 2: Convert to fraction form
    65,224.62/89,954.85 = 45,049.53/x
  3. Step 3: Cross multiply
    65,224.62x = 89,954.85 × 45,049.53
  4. Step 4: Simplify right side
    65,224.62x = 4,052,423,713.72
  5. Step 5: Solve for x
    x = 4,052,423,713.72/65,224.62
  6. Step 6: Final answer
    x = 62,130.28

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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.