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Finding the Fourth Proportional to 65,613.49, 90,549.56 and 36,943.02

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Solution

The fourth proportional to 65,613.49, 90,549.56 and 36,943.02 is: 50,983.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,613.49 : 90,549.56 = 36,943.02 : x
  2. Step 2: Convert to fraction form
    65,613.49/90,549.56 = 36,943.02/x
  3. Step 3: Cross multiply
    65,613.49x = 90,549.56 × 36,943.02
  4. Step 4: Simplify right side
    65,613.49x = 3,345,174,298.43
  5. Step 5: Solve for x
    x = 3,345,174,298.43/65,613.49
  6. Step 6: Final answer
    x = 50,983.03

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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.