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Finding the Fourth Proportional to 65,979.99, 91,094.49 and 43,359.12

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Solution

The fourth proportional to 65,979.99, 91,094.49 and 43,359.12 is: 59,863.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,979.99 : 91,094.49 = 43,359.12 : x
  2. Step 2: Convert to fraction form
    65,979.99/91,094.49 = 43,359.12/x
  3. Step 3: Cross multiply
    65,979.99x = 91,094.49 × 43,359.12
  4. Step 4: Simplify right side
    65,979.99x = 3,949,776,923.25
  5. Step 5: Solve for x
    x = 3,949,776,923.25/65,979.99
  6. Step 6: Final answer
    x = 59,863.25

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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.