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Finding the Fourth Proportional to 65,065.92, 89,783.03 and 35,990.36

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Solution

The fourth proportional to 65,065.92, 89,783.03 and 35,990.36 is: 49,662.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,065.92 : 89,783.03 = 35,990.36 : x
  2. Step 2: Convert to fraction form
    65,065.92/89,783.03 = 35,990.36/x
  3. Step 3: Cross multiply
    65,065.92x = 89,783.03 × 35,990.36
  4. Step 4: Simplify right side
    65,065.92x = 3,231,323,549.34
  5. Step 5: Solve for x
    x = 3,231,323,549.34/65,065.92
  6. Step 6: Final answer
    x = 49,662.31

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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.