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Finding the Fourth Proportional to 65,803.25, 90,808.49 and 35,995.25

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Solution

The fourth proportional to 65,803.25, 90,808.49 and 35,995.25 is: 49,673.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,803.25 : 90,808.49 = 35,995.25 : x
  2. Step 2: Convert to fraction form
    65,803.25/90,808.49 = 35,995.25/x
  3. Step 3: Cross multiply
    65,803.25x = 90,808.49 × 35,995.25
  4. Step 4: Simplify right side
    65,803.25x = 3,268,674,299.67
  5. Step 5: Solve for x
    x = 3,268,674,299.67/65,803.25
  6. Step 6: Final answer
    x = 49,673.45

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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.