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Finding the Fourth Proportional to 65,979.99, 98,954.82 and 39,333.51

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Solution

The fourth proportional to 65,979.99, 98,954.82 and 39,333.51 is: 58,991.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,979.99 : 98,954.82 = 39,333.51 : x
  2. Step 2: Convert to fraction form
    65,979.99/98,954.82 = 39,333.51/x
  3. Step 3: Cross multiply
    65,979.99x = 98,954.82 × 39,333.51
  4. Step 4: Simplify right side
    65,979.99x = 3,892,240,402.02
  5. Step 5: Solve for x
    x = 3,892,240,402.02/65,979.99
  6. Step 6: Final answer
    x = 58,991.22

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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.